Monday, July 21, 2008

Marriage and Engineering Revisited

Back on May 31, I argued here that allowing same-sex marriage in the U. S. could conceivably damage our prospects for raising the next generation of engineers. It elicited several responses, including a remarkably thoughtful and articulate set of counterarguments by Michael Faris, an instructor in business and technical writing at Oregon State University. In the time since, I have read David Blankenhorn's The Future of Marriage (I admitted I had only read the reviews of it earlier). In the May 31 blog, I cited that book to support my arguments that children raised in circumstances other than a two-biological-parent family do not do as well, in a variety of measures, as children who grow up under the care of their own mother and father.

Reading the book has given me a deeper understanding of the complex issues involved, and I would like to explore a few of them briefly here as I respond to some of Mr. Faris's arguments. For those of you who are wondering what this has to do with engineering ethics, the point is that anything which encourages the development of stable, intellectually agile, and dedicated young adults will augur well for the future of engineering education, and without such people, there won't be as many future engineers. Also, there's some interesting ethical reasoning in this issue to be explored on its own.

First, I will concede a couple of points to Mr. Faris.

He claimed that maybe white, male, middle-class students do better in engineering, not because they are "inherently 'superior,'" but because such students receive "unearned privileges" such as living in better school districts than students of poorer single parents, having more relatives and friends who are college graduates, and so on. I will admit that I did not consider these kinds of factors in my original arguments, although they are difficult to disentangle from intrinsic abilities and character.

Second, he said my likening same-sex marriage to flooding the engineering-degree market with bogus degrees from fake institutions was a bad analogy. I admit that the comparison was poorly chosen and rather obscure. But as my reading of Blankenhorn revealed, that analogy turned out to be my intuitive way of groping toward a point that Blankenhorn makes abundantly clear in his book. That point is the "deinstitutionalization" of marriage. What does he mean by that?

Social institutions of any kind—marriage, universities, the legal system, you name it—both grant rights and require responsibilities of those who participate in them. If people claim the rights without following the rules that specify the responsibilities, the institution collapses, and whatever good it was doing disappears along with it. To remove the responsibilities from marriage, or any other institution, is to deinstitutionalize it, which radically reduces its beneficial effects for society.

To oversimplify Blankenhorn's main point, the promotion of same-sex marriage is an attempt to use marriage for a purpose it was not designed to fulfill: the promotion of human dignity for gay people. Blankenhorn is in favor of giving gay people equal recognition as full members of society. But he sees this good thing to be in conflict with another good thing: the right of every child to be cared for by their natural mother and father. He sees the latter good as the primary institutional purpose of marriage, which is why sexual intercourse and the care of children are responsibilities involved in the institution as it has historically stood.

He shows, in more detail than I can outline here, how the legalization of same-sex marriage must change the meaning of marriage for every single person in the country—married, single, with or without children, and for the children themselves. It already has in Canada. Largely because of that nation's implementation of same-sex marriage, the term "natural parent" has been eliminated in Canadian law, and replaced by the term "legal parent." And that isn't just for children of same-sex couples—it's for everybody. In law, there is no longer any such thing as a natural parent in Canada. Parents are now what the law says they are, period. My badly chosen analogy to the debauching of engineering degrees was simply my attempt to show how you can wreck an institution by lowering its standards. Changing marriage from what the U. N. Declaration of Human Rights says it is when it guarantees "the right to marry and to found a family," which is "the natural and fundamental group unit of society. . . entitled to protection by society and the State," to what one judge called "a celebration of a life of commitment to the relationship" lowers the standards of marriage.

Mr. Faris discounted my citation of "objective" social-science research that shows children raised in a two-biological-parent family do better, saying that social science is an "ideology." He implied that if a thing is ideological, then it can't be objective. By "objective," I simply mean that which is the same for me, for you, and for everybody else—that which is public knowledge, as opposed to a subjective feeling or sensation. If Mr. Faris wants to call social science an ideology, that is his privilege. But that does not change the fact that if you look at two different groups of children, one group being raised by their two natural parents and the other some other way, and the natural-parent group drops out of school less, commits suicide less, does drugs less, engages in early sex and has babies in their teenage years less, then those numerical facts are the same facts for everybody, whether you call them ideological or not.

The last point I will address is the one Mr. Faris makes here: "Our current Western model of family didn't arise because it was best for children; it arose because it was best for the continuity of property under a capitalist system." I beg to differ. He says there are societies in which children are raised "communally" or by "large extended families." First, I am unaware of any society, present or past (with two exceptions that Blankenhorn cites) in which the biological mother and father, if available, do not play a lead role in the raising of children, however much the extended family or community or the village raises the child as well. Blankenhorn uses the example of the Trobriand Islanders in the South Pacific as a society in which conventional inheritance of property as we know it in the West is largely unknown (uncles, for example, take on the primary responsibility for providing food), but in which the mother and father play primary roles in the raising of children. This is not to say that property rights are not related to family structure at all. But Mr. Faris is simply wrong when he claims that property rights are the main reason for the near-universal practice of mothers and fathers bearing the main responsibility for raising their children.

I understand from his blog that Mr. Faris will be pursuing a Ph. D. in English rhetoric and composition at Penn State in the fall. I wish him the best in his pursuits, and thank him for his thoughtful and stimulating comments. All the same, it looks like we will have to agree to disagree on this topic, which I will now give a well-deserved rest.

Sources: My original blog on this topic was "California Supreme Court Damages Future of Engineering" on May 31. Mr. Faris's comments can be found below that entry, and his website "A Collage of Citations" is currently at http://oregonstate.edu/~farism/blog/. The quotations from the U. N. Declaration of Human Rights is from p. 182, and the judge's definition of marriage is from p. 147, of David Blankenhorn's The Future of Marriage (Encounter Books, 2007).

Monday, July 14, 2008

Too Good To Be Ethical

You've probably heard the saying, "If it's too good to be true, it probably isn't'." If someone came up to you and offered to let you invest in a project to make free energy, what would you do? Or what if you were looking for an engineering job, and got an offer from a company working on such a project? This isn't as farfetched as it sounds.

Over my years as an engineering professor, I have run across my share of techno-eccentrics: people who promote ideas or theories that obviously violate the known laws of physics. Some of them were relatively harmless—the guy who thought he could replace all of Maxwell's electromagnetic equations with diagrams of springs, for example, or the fellow who said he found a meteorite in Barton Creek in Austin and claimed to have made a battery with it that generates huge amounts of energy. But every so often I come across someone who is clearly using an idea like this to raise lots of money. And then things get complicated.

Recently I heard a presentation by a fellow who claims to have developed a way to generate energy from nothing. He's been working on this for the last twenty years, he says, and now has built a system that takes eighty-five kilowatts of power to run and puts out 800 kilowatts—you do the math. No fuel, no solar input or anything, just run it and it makes energy from nothing.

How does it work, if it works as he claims? Well, there are two things to be considered: what he says it does, and what it actually does. They may not be the same. What he says he does is to heat up gas or air with a microwave oven and a high-voltage transformer until some quantum-mechanical things go on, and presto!—free energy.

Now, quantum-mechanical things are always going on everywhere, and people have been heating gas with microwaves and high-voltage transformers for decades. Nobody other than the gentleman in question has claimed to get out eight times more power than they put in for hours at a time. Although he appeared at a scientific meeting, he clearly delivered more of a sales pitch than a technical presentation. He admitted he wasn't telling everything he knew, claiming that he had to protect his investors, from whom he has already raised millions of dollars.

This situation raises a number of questions which need to be addressed in a logical order. The first question is, does he really get the results that he claims? The scientific way of answering this question is to try to duplicate his experiment. But this is impossible, because he has already told us that he hasn't described all the details necessary. The purpose of describing experiments, all the way back to Robert Boyle of Boyle's Law, is to make things so clear that anyone with the necessary equipment can duplicate them and get essentially the same results. By refusing to do so, the free-energy man is clearly not acting like a scientist, but like a promoter.

The law of macroscopic conservation of matter-energy (allowing for the conversion of matter into energy as in nuclear fusion reactions) is so basic to modern science, that any reputable scientist will resort to almost any other alternative than to question it. But this gentleman runs right up to the issue and says you can get away with violating it under some conditions having to do with quantum mechanics. Judging by some other things he said, he is using the words "quantum mechanics" merely as an incantation to get people to suspend their common-sense disbelief that you can get energy from nothing.

Philosophically speaking, there is a logical possibility that he has evaded the conservation of matter-energy, but if he has, it's the biggest scientific discovery of the last three centuries. In order to be recognized as such, however, the data must be presented in a scientific way for experimental validation, and this has not been done. A discovery that is not generally recognized is not yet a dis-covery, in that it remains covered or concealed to most people except perhaps to the discoverer. And if this fellow really has something, it's clear to me that he doesn't understand the details of the scientific issues involved.

Well, if he's not a scientist, is he acting like an ethical engineer? That takes us to the next question: is he consciously perpetrating a fraud, or does he sincerely believe that he's getting free energy? This question is not so easy to answer. Some crooks plan to be crooks from the start, know they are acting as crooks, and even glory in their crookedness. But many con artists have a psychological makeup that allows them to maintain an emotional belief in the legitimacy of their crooked scheme, even as they are pocketing the profits and delivering little or nothing of value to the victims. When they're caught, they will make excuses like, "Well, if you had just let me operate for another six months, everything would have worked out fine and everybody would have gotten their money back." This faith in the rightness of their evil schemes allows them to sell their ideas with a zeal and sincerity that convinces the gullible—and there are always plenty of those types around, even among trained professionals.

Nevertheless, just because a crook believes sincerely in a fraud doesn't make it any less of a fraud. Just as ignorance of the law is no excuse for violating the law, a sincere belief that a fraud is either technically or legally sound is no excuse for perpetrating it on people. That is why all good engineering is based on the best available scientific principles. If an engineer happens to discover something that seems to violate a well-known physical law, the first thing to question isn't the physical law—it's the engineer's own experiments and calculations. And while these days, few working engineers are in fields where they have opportunities to make fundamental scientific discoveries, it has been known to happen.

The case of Karl Jansky is an example. Purely as a practical matter, he was hired by the Bell Telephone Labs to investigate sources of radio noise in order to improve long-distance shortwave transmission in the 1930s. When he detected a mysterious source of noise that seemed to move around slowly with the seasons, he tracked it for an entire year in order to make sure it was really coming from outer space. Once he was sure of his findings, he published his results. Without really meaning to, Jansky founded the scientific discipline of radioastronomy. This discovery wasn't the kind that he could have personally profited from, but if it had been, I think he would have had the integrity to report it to his employers and to the scientific community anyway.

I expect our free-energy friend will go on for a while raising capital with his flashy machinery until the inevitable crash, which he will blame on anything and everything except himself. Of course, there's the tiny, tiny possibility that he's really on to something. If he is, well, you read about it here first. But if I were you, I wouldn't hold my breath.

Thursday, July 03, 2008

E-Haste Makes E-Waste

Last night some young people came by the house taking signatures and contributions for the Texas Campaign for the Environment. We see folks like this several times a year, and this time their issue was e-waste. My wife gave them a small sum and wrote and mailed four letters to legislators about the issue. And I'm blogging about it, so that's my bit for the cause.

What is e-waste? Basically, anything electronic that you throw away—cell phones, computers, TVs, electric toothbrushes, and so on. And as I heard someone say a few years ago, "there isn't any 'away' anymore." We are increasingly aware that trash has to go somewhere, and electronic waste causes peculiar problems in landfills. Most of it is held together with solder, and until a few years ago all solder had lead in it. Cadmium plating was popular for steel chassis, certain plastics have toxic plasticizers that leach out into the soil, and so for a variety of reasons, e-waste is one of the less attractive types of garbage to put on top of your water table. And it's highly non-biodegradable—there's a good chance that the twentieth century will be known to future archaeologists as the Cathode-Ray Tube Era, since the big glass bottles we watched TV on for many years will probably outlast almost all other artifacts from our time, like pottery shards in ancient Sumerian archaeological digs.

Anyway, over two million tons of e-waste went to municipal dumps in the U. S. as long ago as 2005, when the annual rate of increase was running between five and seven percent, so who knows what it is now. And next February, when millions of analog TVs in the U. S. become instantly useless for anything but viewing old VHS videotapes, the flood of e-trash is sure to increase.

Years ago the European Union decided to shift some of the burden of disposing of e-waste from the consumer and the government onto the manufacturers who make the stuff. They have what is called "extended product responsibility" (EPR), which means that you can't simply make and sell electronics and wash your hands of all responsibility once the things are sold. Manufacturers (or their agents) are under an obligation with EPR to take back used and obsolete electronics and dispose of it in an environmentally responsible way. This costs the manufacturers more than otherwise, but it also gives them an incentive to change their products so they are easier to dispose of. "Easier" can mean anything from no-lead solder (which is now required in Europe) to reducing the size and weight of products overall. What it apparently doesn't mean is making products that will last longer, and not just in terms of not breaking down.

In all the discussions of e-waste I've seen, the unmentioned elephant in the room is the fact that the whole consumer-electronics economy is based on faster and faster product life cycles. A personal comparison may be apt here. During my brief foray into industry around 1980, I worked for a company that made mobile radios for ambulances, fire trucks, and so on. We were developing a new product line of radios to replace the previous line, which came out about 1972. So, taking this recollection as a guide, the lifetime for that product, in terms of how long it would remain basically the same piece of equipment for sale with only minor changes, was eight years. Of course, police departments and private consumers are two different breeds of cat, but the point is that sales were generated from new customers, not by making the same customers throw away something they just bought six months ago in order to buy a newer model.

But the newer-better-faster speedup cycle—the "e-haste" of my headline—is the reigning paradigm in consumer electronics today. Product and even component life cycles are now measured in months, not years. Such rapidity used to be physically impossible, but with modern computer-aided design and manufacturing tools, an entirely new product can be designed, developed, tested, and in full production in three to six months. Having acquired this wonderful tool, manufacturers use it to the limit, which is why you can't find parts for anything electronic older than a couple of years. That's an exaggeration, of course, but perilously close to the truth.

I applaud the efforts of those who are trying to get take-back laws passed in the U. S., although they have an uphill battle to fight. The fact is that the vast majority of consumer electronics bought in this country is made in Asia, and we lack the protectionist motives that partly inspired the European Union's move toward take-back laws. Still, we are a big market, and if we decided to move to EPR, U. S.-based retailers such as Wal-Mart would have to deal with it somehow. I can't picture shiploads of obsolete PCs making their way back to China for disposal, but if that happened, I would be very careful to check up on what happened to them once they got back to their country of origin. There are already third-world countries whose leaders have turned to accepting U. S. waste streams for fun and profit, to the harm of the average citizenry, and we don't want to make that kind of problem worse by passing laws that just move the junk offshore. And there is another way yet, and that is to deal with the elephant face-to-face.

There is a discipline in many religious traditions called simplicity. It means basically not buying, doing, or having things that are not necessary. And of course you can spend a lifetime figuring out what "necessary" means. Unless you live like a hermit, you will eventually have to buy some number of electronic gizmos just to get along in today's world. And simplicity has never made for big new markets—the last thing electronics manufacturers want to do is to sell you something you can use for ten years without spending any more money on it. But if enough people ask for things that you don't have to throw away right after you've learned how to use it because the software is obsolete or everybody else has the new model that yours isn't compatible with, maybe the manufacturers will start making things that way.

Sources: An organization called the Electronics Take-Back Coalition (www.computertakeback.com) has collected statistics from the U. S. Environmental Protection Agency and other sources, some of which I used for this column.

Monday, June 30, 2008

Carbon Nanotubes and Cancer: A Hazard Forestalled?

Writing about engineering ethics can be a grim business: plane crashes, fires, explosions, or insidious deaths from apparently innocuous things that people did decades earlier show up with depressing regularity in this column. So I try to look for good news every now and then, and a few weeks ago some showed up in the New York Times, of all places.
The good news is not unmixed with bad news, but hey, I'll take what I can get.

The bad news is that it looks like carbon nanotubes—those tiny rods of carbon atoms arranged on a hexagonal grid like chicken wire—may have the potential to cause cancer under certain special conditions. The good news is, we know about the problem long before any epidemiological evidence has shown up that people have actually been harmed in this way.
This looks like a success story of how research dollars spent on engineering-ethics-related matters have actually paid off with some useful information. But first, let me describe carbon nanotubes and summarize the results of the research.

Starting in the early 1990s, many scientists began to be aware that under certain conditions, carbon forms long, thin tubes that can be less than a billionth of a meter in diameter but thousands of times longer than that. The term "nanotube" was invented to describe these structures, and since then there has been a race of sorts both on the scientific and engineering fronts to exploit their fascinating properties. One peculiarity they show is that they conduct electricity extremely well along the axis of the tube, so well that I understand one prominent commercial application is in carbon motor brushes. Anybody who uses a power-line-powered electric drill has used carbon brushes—sometimes you can see sparks from them toward the back of the drill. The purpose of the brush is to conduct current to the armature (the moving part) of the motor. Brushes made with properly aligned nanotubes are more efficient at this than the regular kind, although their added cost doesn't justify using them in consumer products such as drills. But in heavy industrial applications where the brushes may conduct hundreds of amps, they make enough difference to sell.

Anyway, some researchers in the United Kingdom and the U. S. got some government funding to see whether carbon nanotubes might be dangerous to health. One reason to suspect this might be the case has to do with the shape of the nanotubes: long and thin. It turns out that one of the main reasons asbestos particles can cause an otherwise rare form of lung cancer called mesothelioma appears to be that they, too, are long and thin (that's why asbestos is a mineral fiber that can be woven into sheets). Although the connection between the shape of asbestos fibers and this type of cancer is not entirely clear, there is abundant evidence that associates exposure to asbestos with mesothelioma. So the researchers thought it would be worth looking into to see if carbon nanotubes could cause precancerous lesions in mice.

Well, they do. The experiment wasn't continued to the point that the mice actually developed cancer, but they did get inflammation and certain lesions associated with precancerous conditions.

The first thing that will happen is, the researchers will apply for more funding to look into the question further. That seems reasonable, because it's a long stretch from precancerous lesions in mice to actual cancer in humans. The next thing that ought to happen is that people should use appropriate precautions when dealing with carbon nanotubes. What would "appropriate precautions" amount to?

Well, nothing like an outright ban, for example. We have learned how to deal with all kinds of hazardous substances over time, and carbon nanotubes don't seem to be nearly as hazardous as some other kinds of stuff you have around the house—drain cleaner or bleach, for example. If you can keep people from breathing or swallowing carbon nanotubes, the things should be perfectly safe to use otherwise. This may present a problem if someone wants to weave them into clothing, for example, but most of the interesting applications have nothing to do with textiles.

On the other hand, having been forewarned by at least one forward-looking study, we shouldn't totally ignore the potential health hazards that carbon nanotubes might present in the future. All too often, the typical way that health hazards of newly introduced substances have been discovered is that people simply start selling products with the new stuff in them, and months or years later, some weird rare malady starts showing up in a few people (or sometimes not so few). And it takes a lot of epidemiologists doing a lot of Sherlock Holmesing to find the cause. By the time they do, whole industries dependent on the substance in question may have large vested interests in the status quo, and so you get a big political tussle as well as delays in appropriate regulations, if they are enacted at all.

This happened with asbestos and, above all, tobacco, and I hope it doesn't happen with carbon nanotubes. Fortunately, it looks like you can't smoke them, so we probably have less to worry about than with cigarettes. Nevertheless, I hope this study doesn't just disappear and fail to stimulate more research into the possible health hazards of carbon nanotubes. This time, maybe, we can get it right.

Sources: The New York Times article on the possible health risks of carbon nanotubes appeared on May 21, 2008, and can be viewed at http://www.nytimes.com/2008/05/21/science/21nano.html. The research was published in Nature Nanotechnology, and an abstract is available without charge at http://www.nature.com/nnano/journal/vaop/ncurrent/abs/nnano.2008.111.html.

Saturday, June 21, 2008

Does The Internet Flatten Your Mind?

If you are reading this, you must spend at least some time on the Internet, and possibly many hours a day. If you're older than 30 or so, you can remember a time before the Internet when "reading" and "holding a piece of paper in your hands" were generally synonymous. And if you're younger than that, believe me, there was such a time and people actually managed to live under such conditions.

The question for today is: does using the Internet make us less able to do certain important mental feats that we may miss after they're gone? More specifically, does it take from us the ability to give sustained attention to a long, complex piece of reading that requires deep thought?

I am moved to this inquiry by a couple of things. In a recent column, Miami Herald columnist Leonard Pitts Jr. says "amen" to an article in the latest issue of the Atlantic Monthly entitled "Is Google Making Us Stupid?" In the Atlantic article, author Nicholas Carr argues that people who use the Internet routinely tend to zip from info-nugget to ad to email to YouTube to . . . well, you get the idea, all without thinking thoughts any deeper than a puddle on a sidewalk. Both he and Pitts find that since adapting to the Internet, they find it much harder to sit still with a book that makes a complex, sustained argument over many chapters. They end up getting restless or sleepy. And they wonder if the instant-gratification style of thinking that Google and the rest of the Internet services encourage, militates against the deep, contemplative, often temporarily aimless and associative, but sometimes very productive type of thinking that reading at length encourages.

There is some quantitative evidence that this suspicion is true. Carr cites a study that found most Internet users do not read more than a few paragraphs of any resource they find, even if it is many pages long. In the technology and society journal The New Atlantis, Christine Rosen cites numerous studies that show the kind of work style known as multitasking actually decreases efficiency rather than otherwise. And the Internet makes multitasking so easy—just open three or four windows on your email, a favorite blog, a video news feed, and go to it.

I must admit that the Internet has profoundly changed the way I do what I used to call library research. My professional research is eclectic in that I often find myself working in fields that I do not have much educational background in. Suppose (as recently happened) that I want to find out about an arcane subject such as astronomical spectrophotometry. (For those who just have to know, it means measuring the light output of stars at various wavelengths.) In the pre-Internet days, this would have meant a trip to the library (preferably the multi-million-volume University of Texas library system), perhaps talking with a reference librarian, hauling six or eight books to a study carrel, writing down references to papers, going back to the shelves and looking up the papers in big heavy volumes of bound journals, and so on. It would have taken a whole day if done properly, and I might have ended up with two or three photocopied papers, some notes, and a whole lot more questions than answers.

Contrast that to what I managed to do yesterday. I Googled the topic, found a few papers online, got more confused than anything else, and ended up going to the library anyway (the local Texas State library, not Austin). I found two books that addressed the subject, but from an insider's point of view. Fortunately, one of them listed some references for introductory works—most of them were books, but one was an online source. Turns out that a professor at Oklahoma University has written an introductory text that he posts online for free. It turned out to be exactly what I needed.

That's a fairly typical story for any of my ventures into new fields. The online stuff helps some (especially Wikipedia, which seems to have very good articles about the basics of technical topics). But at some point I usually end up going to books, sometimes old books. It's unusual that I can find everything I need to know online, especially if I want an overall picture of a field as an introduction.

Now Google and company are working hard to change that by putting all the world's books online. And yes, they may succeed. But once that happens, somehow I don't think people will write new books the same way they used to write old books. Why put a 300-page book on line if nobody reads past the first three or four pages anyway?

It takes a certain kind of personality to write a good book. A psychological test called the Myers-Briggs Type Indicator alleges to measure a dichotomy between two distinct lifestyles which are termed "judging" versus "perceiving." One author summarized the difference between the two poles of the dichotomy this way. People who rate high on the "judging" end of the scale are "job-oriented jumpers" who like to size up a task, do it, get it out of their way, wipe their hands, and go on to the next thing. Perceiving types, on the other hand, tend to be "pendulous postponers" who can always think of one more touch to add to their creation, or one more aspect of looking at a subject.

Many college professors turn out to be pendulous postponers, delving endlessly into the infinite ramifications of a specialized topic. And since they will stick with a subject longer than anyone else does, they often find things that nobody else has found. The supreme example of this type that I can think of is the cultural historian Jacques Barzun, who turned 100 last November. A few years ago he wrote From Dawn To Decadence, a history of Western culture over the last five centuries, in which he summed up a long lifetime of learning that made connections and associations of ideas that even historical duffers like me could understand.

My mind doesn't work that way. I am a "judging" type, which is one reason I write a blog on a different topic each week, rather than using the same time to write a book or two a year (much as I'd like to write a book!). But the world needs both kinds of thinkers. It's pretty clear that the Internet encourages the superficial, the list-of-numbers kind of judging thinking, over the long-term study, contemplation, pondering, and sustained attention needed for the perceiving kind of thinking. It would be tragic if the Internet wipes out any future hope of having more of the Jacques Barzun type of personality arise in the intellectual world of the future. As long as we don't get doctrinaire about banning books in favor of the Internet or something, I don't think we have much to worry about. But the same end may be achieved by other means, and possibly even by accident rather than design.

Sources: The Atlantic Monthly article appears at http://www.theatlantic.com/doc/200807/google. Christine Rosen's article "The Myth of Multitasking" appears in the Spring 2008 issue of The New Atlantis.

Monday, June 16, 2008

The Micro- and Macro-Ethics of Plug-in Hybrids

The online version of Wired Magazine carried an article recently that took a dim view of the Bush Administration's commitment of $30 million toward plug-in hybrid vehicle research, saying it was grossly inadequate in view of our present oil-price exigencies. A plug-in hybrid car is like a conventional hybrid (e. g. the Toyota Prius) in that it has both batteries to run the electric motor coupled to the wheels, and an internal combustion engine to supplement power from the batteries when necessary. But in addition, a plug-in hybrid can be plugged in to your house current overnight to draw power from the electric grid. If the batteries are large enough, some people claim that plug-in hybrids can travel up to 100 miles per gallon of gasoline consumed, although this doesn't count what it does to your electric bill.

Sounds great, doesn't it? Let's look at the decision to go with a plug-in hybrid from two points of view. First, there's what ethicists call the micro-ethical view: what should you as an individual do about the situation? Then, there is the macro-ethical view: what should large institutions—corporations, professional societies, governments, nations—do about it? As we will see, the answers aren't necessarily the same.

What an individual should do depends on what kind of individual you are. If you're just an average consumer, the choice is simply, "Should I buy a plug-in hybrid or not?" Of course, this assumes that they are out there to buy. And they aren't—not just yet, anyway, although the much-hyped Chevrolet Volt is supposed to make it to showroom floors by 2010. This shows the limitations of microethical reasoning: options are limited to what one person can realistically do.

If you are an engineer, and you think a plug-in hybrid is a good idea, you might try getting a job related to power electronics or automotive R&D. Or you could even start your own company to address one of the many technical problems that lie in the way of plug-in hybrid development. The most promising type of battery, the lithium-ion cell, still has lots of problems with safety and lifetime, although these may be ironed out with time. So one's career choice is fraught with ethical implications that many young people don't even consider to start with, let alone after one has taken the job.

When we turn to the macroethical side of the question, a whole array of sub-questions arise. If a company goes into a market not because it's profitable but because it is the morally right thing to do, that company either has to subsidize its activity by drawing funds from other more profitable lines, or face the prospect of going broke, after which the company will no longer exist to do anything at all, moral or otherwise. There are specialty firms right now that will convert conventional cars to plug-in hybrids, but my impression is they are not growing fast and simply don't have the resources to compete with the major automakers. The automotive industry is a strange mixture of century-old traditions (the way car dealership economics works, for instance) and cutting-edge technology. Any organization that wants to succeed in it has to work within the complex environment of existing companies, regulations, and market forces.

The problem is even more complex when you ask what the U. S. government might best be doing in this area. Obviously, the Wired reporter (as well as several private and public sources he quoted) thought that $30 million was so small an amount as to be an empty gesture. He quoted a source at the Brookings Institution who said that to make a major impact on the auto market, plug-in hybrids would need about $18 billion of government subsidies and funds over the next ten years. That is a lot, but compared to many other things the government does, it's not all that much.

Over against that notion is the sense, supported by many conservative schools of economics, that we will have plug-in hybrids when fuel costs and other economic factors make it profitable to sell them, and any government intervention to hasten that day is liable to be counterproductive. Macroethics in engineering gets tangled up in economics and public policy pretty quickly, as you can see.

My own opinion of the matter is that there are technical solutions out there, but those who have the nominal power to implement them (both in private corporations and in government) lack the courage to go ahead and do something. The "something" might be in a variety of directions, either liberal or conservative. But my sense is that lately, no one has been willing to step up and put their hands on the wheel and steer. And just as with an individual who drifts through life reacting to things without making or implementing specific plans, institutional drift is sooner or later bound to lead to disaster.

As far as buying a plug-in hybrid goes, I plan to hang on to my own two cars for a while yet. One of them has 183,000 miles on it and the other, which already gets about 37 miles a gallon, is about to turn over 100,000 miles. The car I had before that made it to 200,000 before the wheels began to fall off (literally). So I figure by the time I'm in the market for another car, one of my choices is likely to be a plug-in hybrid. But whether I'll be able to afford it is another question.

Sources: The Wired article on plug-in hybrids appeared on June 13, 2008 at http://blog.wired.com/cars/2008/06/feds-scrape-tog.html.

Monday, June 09, 2008

New York's Crane Collapses: Who Inspects the Inspectors?

New York City is undergoing something of a building boom, and building in large cities means tower cranes—those improbably spindly structures that symbolize major construction these days. Last May 30, a crane in use at 91st Street in Manhattan collapsed, killing the operator and another construction worker, seriously injuring a third, and damaging several buildings as it fell to the street below. What made it even worse is that this collapse was the second in less than three months. On March 15, another crane collapsed in midtown Manhattan, killing seven. And in both cases, it appears that the inspection process designed to prevent just such accidents was flawed, to say the least.

What do crane inspectors do? What pressures do they experience in their jobs? And what changes can be made in the system to improve it?

On paper, at least, New York City appears to have a rigorous and exacting system of required inspections for the erection and use of tower cranes. Every contractor has to have a permit to operate a crane, the operators themselves must be licensed by passing tests or showing an equivalent amount of specialized experience, and the cranes themselves must be inspected periodically by crane inspectors, who are city employees. And most of the time, the cranes operate without major accidents or injuries. But it looks like all is not as it should be with the inspection process.

In the March accident, a crane inspector was arrested under the suspicion that he falsified a statement saying he inspected the crane on March 4 that later collapsed. And just last Friday, the acting chief inspector of cranes, James Delayo, was arrested on charges that he took bribes to supply a construction firm with answers to the crane operator's test, as well as to report inspections on cranes that he never in fact inspected. But even if all the inspectors involved had done their jobs, it appears that the May collapse might not have been prevented. A New York Times reporter found that the collapsed crane's turntable was a rebuilt unit that had earlier been struck by lightning and welded back together. It is entirely possible that a hidden defect in the weld contributed to the accident, although further investigations will have to be conducted to confirm that theory. If so, a routine visual inspection might not have revealed any problem.

Inspectors, quality control engineers, traffic policemen—the job of all these people is to make sure that what is supposed to happen actually happens, and what isn't supposed to happen, doesn't. And if they see problems, or potential problems, they have the authority to act. Any time a person holds authority over others, there is the temptation to abuse that authority. And it is no news that from time to time, inspectors take bribes instead of doing the harder thing—actually making the inspection or penalizing a crane operator for careless actions.

A chronic problem with government-operated departments of inspection—whether the things inspected are cranes, X-ray machines in dentists' offices, or sides of beef—is a shortage of inspectors. The benefits of inspection are largely invisible, while the negative consequences of inadequate inspection are blatted all over the news media. The political tendency is therefore to fund inspection agencies just enough to prevent too-frequent accidents, but not so much that the inspected industries and businesses get sore from being plagued with swarms of supernumerary inspectors. The technical abilities required of an inspector can be equal to or greater than his or her counterpart in private enterprise, but government pay is always less than in the private sector, adding to the temptation to bribery.

Some states have decided to outsource certain kinds of inspection to private third-party firms. This leaves the free market to decide the pay rates and numbers of inspectors, but has its own problems as well. How do you insure that a private inspection firm, which is basically a kind of consulting operation, is doing its job? Hire government inspectors to inspect the inspectors? Whether an inspector works for a public or private firm, the issue always comes down to professional integrity: does the inspector know enough technically to do a good inspection? And if so, do they have the moral fiber to resist the temptations to bribery, shortcuts, and other forms of professional corruption?

In today's short-term bottom-line world, the kind of long-term relationships and institutional reputations needed for inspection systems to work well can be hard to establish. But it is too easy to forget that lives are at stake. New York City appears to be trying a short-term fix by prosecuting some crane inspectors who were alleged to be on the take. While that is certainly something that needs to be done, one wonders whether corruption in the process may be endemic, and the arrests happened only in response to headlines. Is privatization a better approach? Maybe, but as in so many other aspects of engineering, you have to work with the materials, culture, and political environment you have, and privatization in certain political circles is a dirty word. Here's hoping that however it gets done, the system of crane inspections in New York improves to the point that seeing those giant towers swinging across the skyline will be only a source of pride, and not of fear.

Sources: I used reports from the New York Times on the crane accidents and bribery arrests available at http://www.nytimes.com/2008/06/07/nyregion/07crane.html and http://www.nytimes.com/2008/06/08/nyregion/08building.html. A technical description of the March 15 collapse is available at http://www.gostructural.com/article.asp?id=2788.

Saturday, May 31, 2008

California Supreme Court Damages Future of Engineering

I'm going to go out on a limb here. But I'm sure that the limb's pretty solid.

On May 15, the California Supreme Court struck down a ban on same-sex marriages that the state has had in place for some time. I'm not going to talk about the issue of judicial activism, or the question of whether California's citizens will assert their rights to reverse this action by approving a referendum amending their state constitution next fall. Instead, I am going to argue that allowing same-sex marriage will endanger the future of the engineering profession in this country.

Seems like a stretch, doesn't it? Here is my line of reasoning.

First, let me show that allowing same-sex marriages damages the institution of marriage. Some people simply do not see how conventional marriages between a man and a woman are in any way affected if we also let men marry men or women marry women. For these readers, let me make an analogy.

We have a nice solid base of well-functioning, highly capable engineering colleges in the U. S. Most of them are accredited through a rigorous process of inspections, visits, and continuous improvement. Suppose we passed a law that said all employers must recognize engineering degrees from any institution calling itself a college of engineering, whether it was accredited or not. It would be illegal to refuse to hire an engineer simply on the basis of what college he or she got a degree from. (=all of society must recognize marriage certificates of all kinds, whether for same-sex marriages or not.) We would leave the whole accreditation machinery in place, and universities capable of giving a good accredited education would still be able to do so. (=men and women who want to marry the opposite sex can still do so.)

What do you think would happen to the institution of engineering higher education in this country? Outfits handing out engineering degrees would spring up like newsstands on every corner, and students would flock to them. The average competency level of degree-holding engineers in this country would go into a precipitate decline, and the whole process of engineering education might undergo permanent damage that would take years or decades to repair, if ever. And note: in this hypothetical scenario, we did nothing whatever to the good schools. They were still free to stay accredited and do their good, competent job. We simply forced everyone to recognize the fly-by-night institutions as competent, but they were in fact incompetent.

The adjective "incompetent" often carries negative connotations, but it need not do so. It simply means that the noun modified is incapable of doing something or other. I have no shame in admitting the fact that, being a male, I am incompetent to bear a child. Women are incompetent to beget children without a male being involved somewhere along the line. And two men together, or two women together, are incompetent when it comes to fulfilling the practical duties and responsibilities of marriage, namely: being a biological and social unit that consists of a man as father, a woman as mother, and children who each have the same mother and father.

There are many scientific studies—thousands, in fact—performed by sociologists with all kinds of backgrounds and personal beliefs, which examine the question, "Do children who grow up in a family consisting of one mother and one father who are married and stay married, do better than children raised in any other kind of environment?" To qualify "better" you can look at social adjustment, criminal records, levels of school achievement, early or frequent sex and drug use, rates of depression and suicide, and so on. And the resounding, repeatable, monotonously consistent answer is, "Yes." This is not to say that kids raised by a single mother or two gay men are doomed to failure and a miserable existence. The human spirit can triumph over adversity of whatever kind. But when children are examined in statistically significant numbers, there is no question that the social institution we call conventional intact marriage beats any other way of raising children hands-down. That is not an ideological statement. It is a social-science statement backed up by years of the best kind of research that social science can offer these days. If you don't believe me on that, see David Blankenhorn's The Future of Marriage.

Now for the connection to engineering. It is my subjective impression, which I wish some social scientist would check out with the machinery of their trade, that the better grade of engineering students come from just the kind of stable family background that same-sex marriage will militate against. The National Science Foundation, among other institutions in this country, is concerned that very few students of either sex (and especially few women) choose engineering as an undergraduate degree, and even fewer decide to go on to graduate school. This is why it is increasingly rare to find engineering professors who were born in the U. S., because whatever mysterious factor it is that makes people want engineering graduate degrees is in short supply in this country, but seems to be plentiful abroad.

I will not claim that unstable marriages, divorced and remarried couples, single parents, and same-sex parenting is responsible for the entire decline in interest in engineering among young people in the U. S. But I believe a part of it is. And if we damage the institution of marriage further by insisting that same-sex unions get the same recognition as conventional marriages, I forecast a worsening dearth of U. S. students able to muster the discipline and deferred gratification necessary to pursue careers in engineering. I suspect we will wait a long time before the National Science Foundation comes out in opposition to same-sex marriage. Nevertheless, if I'm right, it might do more good for them to work in that direction than to spend their money on some of the programs they have supported in the past to encourage students to become engineers.

There. I made the connection. Like it, hate it, argue with it as you will. But that is my opinion, and as far as the marriage part goes, I'm on solid ground, not hanging from a tree by a limb.

Sources: Although I have not read the book, David Blankenhorn's The Future of Marriage comes highly recommended as a careful, scientifically reasoned argument written by a person who favors equal rights for homosexuals, but is convinced by scientific evidence that same-sex marriage would be too high a price to pay.

Sunday, May 25, 2008

Remembering Brian O'Connell

Last Thursday, May 22 brought the sad news of the passing of Brian O'Connell the previous day. Anyone who knew Brian, or met him even once, was not likely to forget him. For those of you who did not have the privilege of meeting him, I would like first to offer you my sympathy. Then I will try to describe one of the most colorful personalities ever to grace the field of engineering ethics.

This business tends to attract people with mixed backgrounds who are both conversant with the intricacies of some technical field and also interested in the human side of things. Brian was no exception. He once told me he was one of the youngest people ever to run a planetarium show at Hartford's Gengras Planetarium, when as a young teenager he was asked to fill in for the regular operator whom Brian had become friends with. But his interest in the depths of the human soul expressed itself soon thereafter when he attended seminary for a while. Deciding he wasn't quite cut out to be a priest, he switched to computer science, and then back to humanities as he took a law degree and practiced law for several years. Eventually he joined Central Connecticut State University and served with distinction in both their computer science and philosophy departments.

I met Brian shortly after he discovered the Society on Social Implications of Technology (SSIT), a society within the Institute of Electrical and Electronics Engineers (IEEE). He was the guy with long blond hair, horn-rim glasses, and a suave and engaging manner, and he saw something humorous in just about everything. Among the more staid, business-suit-clad engineers that often showed up at SSIT meetings, Brian looked like a hippie who had wandered into a Rotary Club meeting by accident. He was the kind of person who could walk into a room and change the whole tone of conversation in five minutes from boredom to excitement, and he often did.

Naturally, not everybody always agreed with Brian's ideas. But he had the ability to see the other person's point of view instinctively, sometimes better than the other person himself. I'm sure that's what made him a good lawyer, and it is also what made him an excellent advocate of engineering ethics in a wide variety of fields, starting with computer ethics and ranging over other areas it would take a detailed study of Brian's writings to determine. As I have said elsewhere, seeing the other person's point of view is an essential first step in good engineering ethics, and Brian could do that better than just about anyone I know. In everything Brian did, there was a foundational joy in living and a desire to see other people blessed by the same joy, not harmed. And technology, since it was such a big part of life nowadays, was something Brian wanted to bless people with, not the other way around.

I think that desire is what drove him to work so energetically on behalf of the SSIT (which he served in many capacities, including President), on behalf of his law clients when he practiced law, and on behalf of his students at CCSU, many of whom he invited to his own basement lab in his house in West Hartford. When I last saw him in July of 2007, he showed me where he pursued robotics projects with his students and we talked about what he could do with robotics and remote control radio links, which he had obtained an amateur radio license to use.
Brian's actions in his chosen professions (and I count at least three: law, computer science, and engineering ethics) all sprang from a view of life that was deeply rooted in his religious and philosophical outlook. We never spoke about it much, but he was familiar with the classics and liked to quote thoughtful people of faith, from St. Augustine to G. K. Chesterton. Like Chesterton, Brian believed life was a thing to be enjoyed with all one's might. Chesterton enjoyed a glass of wine and a cigar, and Brian was partial to tobacco as well (his lung cancer was diagnosed in the spring of 2007). His legacy continues in the lives of the hundreds or thousands of students, colleagues, and fellow professionals who, I hope, will know more about engineering ethics and act on that knowledge because of something Brian did, said, or wrote. His life crossed the paths of the rest of us like a skyrocket shooting up through the trees. Perhaps Edna St. Vincent Millay had someone like Brian in mind when she wrote

My candle burns at both ends;
It will not last the night;
But ah, my foes, and oh, my friends--
It gives a lovely light!

Requiscat in pace, Brian.

Saturday, May 17, 2008

China's Earthquake: What If We Had Known?

On Monday, May 12, the Sichuan region of China was devastated by one of the worst earthquakes in recent memory. At this writing, the death toll stands at over 50,000, and more bad news about the disaster arrives daily. One of the strangest news stories that has come out of region concerns rumors spread on the Internet that scientists working for the Chinese government knew the earthquake was going to happen, and suppressed the information out of fear that making their prediction public would cause panic ahead of the Olympic games.

A news source almost certainly affiliated with the Chinese government (China Radio International) issued a release Wednesday which quoted Zhang Guomin, a research fellow at China's Institute for Earthquake Science, as saying that earthquake forecasts should be based on scientific analysis and not tailored to political requirements. According to him, earthquake forecasts are not possible with our present state of knowledge. However, another researcher, Zhang Xiaodong of the China Earthquake Networks Center, seems to wish that predictions were possible, because he told the reporters, "I feel deeply regretful and sorrowful at the failure to predict the earthquake."

What if we could predict earthquakes with the same accuracy as, say, we can predict tornadoes today? At least one leading authority believes that such predictions may be possible. A NASA researcher named Friedemann Freund has published a series of papers over the years that connect measurable changes in the earth's electromagnetic fields to strong earthquakes that happen shortly after the changes. (My blogs of Feb. 20, 2007 and Apr. 13, 2006 describe more technical details.)

Without taking sides on whether this is in fact possible, let's do a little thought experiment. Suppose after X years of research and development, we assemble the expertise, equipment, and networks needed to predict major deadly earthquakes. Now no prediction system is going to be perfect, so let's say its accuracy can be quantified this way: when the system predicts an earthquake of at least a given magnitude in a given geographic area during a given time window (probably at least a week, and maybe much longer), the prediction is borne out 80% of the time. And let's say false positives and false negatives are equally likely. That is, for the 20% of predictions that come out wrong, 10% are major earthquakes that happen when none was predicted, and 10% are non-events that don't happen when an earthquake was predicted.

Given this imaginary system, what do we do with it? Do we treat the forecasts like hurricane forecasts and order mass evacuations? That's certainly one approach. Originally, Hurricane Katrina was predicted to hit the Houston area, and a graduate student I knew was pretty perturbed when he wasn't able to arrange for transportation out of the city. As it turned out, he was one of the lucky ones—nothing too bad happened to Houston, but everybody who tried to flee had to endure the grandaddy of all traffic jams on the already-clogged Houston freeways.

Hurricanes generally end up somewhere, so hurricane forecasters are given the benefit of the doubt when they miss on exact predictions of the storm's path. But what if earthquake experts made a prediction that turned out to be a complete bust—that is, everybody evacuates for the full term of the warning and exactly nothing happens? That might sully the reputation of the field indefinitely, and nobody would take them seriously forever after.

To bring the matter closer to home, what if this hypothetical system predicted The Big One for the San Francisco Bay area? If we shut down everything that goes on in Silicon Valley for a week, that would constitute a major economic disaster of its own. You don't just walk up to a huge semiconductor plant and turn off the switch, unless you want to turn it into scrap. Of course, a major earthquake might do that for you, but then you get into the question of how to deal with an evacuation order that would cost billions of dollars to a private company. Lives are more valuable than property, but property isn't negligible. And that's just one example of many problems that we would face in dealing with accurate earthquake forecasts.

The approach California has taken in the absence of reliable earthquake predictions is to mandate earthquake-resistant construction. But that costs more than ordinary construction, and requires a well-functioning regulatory system and a cooperative construction industry, neither of which are always found in other countries. Mass evacuations are simpler, and might be the best path to pursue for countries that can't afford to replace their entire infrastructure with earthquake-resistant structures.

Clearly, even if we had reliable earthquake prediction, we would face a lot of issues in deciding how to act on the knowledge it would provide. But it seems to me that knowledge is always better than ignorance, especially when it comes to earthquakes. And considering the terrible loss of life and property that major earthquakes usually cause, I wish that we spent more intellectual capital on serious efforts to predict earthquakes, and tried to evaluate the predictions in a statistically meaningful way.

Sources: The China Radio International article I quoted appeared at http://english.cri.cn/2946/2008/05/15/48@357631.htm.

Saturday, May 10, 2008

Ethics of the Smart Car

The relationship between drivers and their cars has always been a complex one, fraught with emotional and moral overtones. Maybe that was why some television writers with more enthusiasm than judgment came up with the concept of "My Mother the Car." I'm old enough to remember watching that show, which aired on U. S. television back in 1965. The basic idea was that this guy buys an antique car, only to discover that somehow his deceased mother's spirit has taken up residence in it. The radio dial flashed whenever she spoke to him, I guess so TV viewers could tell that it really was the car and not some hallucinogen-inspired inner voice. The show lasted only one season and is remembered, if at all, for being one of the worst TV series of all time. But if Prof. Clifford Nass of Stanford University has his way, we all may be talking with our cars in the future—and the cars may talk back in tones to match our emotions.

A recent Wired article profiled Prof. Nass's research on the future of the human-automobile interface, and how smart cars may be used. Smart in what sense? Well, with current GPS (global positioning system) technology and computer power, coupled with broadband wireless networks that will be ubiquitous soon, you can imagine driving down the street and saying to your car, "Hey, I'd like a pizza. Any good places within a couple of blocks?" Advertisers and automakers would like your car to reply, "Well, there's Gino's in the next block and Papa's one block over—they're having a lunch special today. What shall it be?"

Of course, the same smarts that lets your car give you dining advice will also empower it to remember how you drive. Auto insurance companies currently give discounts to good drivers and raise rates on poor ones, but the quality of your driving is determined mainly by very coarse measures: the number of accidents and traffic violations. Suppose every week your insurer could download and process (by software, of course) hundreds of details about how you drive: how fast you pulled out after a light changed, whether you were speeding and by how much, and whether you ran red lights without getting caught. Most of the technology's there, it's just a matter of developing it.

Some people would think this amounts to turning one's private car into a spy. The matter gets even more complex if we move to cars which partially or totally take over many of the functions of driving. (See my column "The Human Side of Automated Driving" Dec. 10, 2007). Clearly, if you take your hands completely away from the controls and let the car do everything, your responsibility for accidents that ensue is limited, if not absent entirely. But many plans for computer-assisted driving don't go that far. Nass imagines a heavy-footed driver negotiating with his car for permission to step on the gas after a stop light changes. "Aw, c'mon, just this once?" "No, you're wasting gas, and at five dollars a gallon!" Nass says that changing the car's tone of voice to match the driver's mood may help the situation, but I'm not so sure.

Right after it was economically feasible to put computer-generated voices in cars, some time in the early 1990s, a few manufacturers experimented with it. The idea proved to be almost universally unpopular, as the mechanical female tone reminded everybody of their worst nagging nightmares of school librarians and mothers (there it is again), and the feature disappeared in a model year or so.

Where is engineering ethics in all this? The first responsibility of engineers who are working on these things is to make sure they don't make driving more dangerous. Of course, that doesn't mean things can't ever go wrong occasionally, but tests will have to show a general improvement in safety before new features can be adopted. As for insurance companies and driving information, there is a public-policy aspect which has not been debated yet. It's the same kind of question that arises when health insurers want to use a person's genetic information to restrict health coverage, except in that case you can't help what genes you were born with, but you presumably have some control over how you drive. But should a taxi driver in New York pay higher rates than the legendary little old lady from Pasadena who only drives to church on Sundays? These are questions that involve technology as well as issues of fairness, economics, and what insurers like to call "moral hazard"—that is, the idea that you should not be exempt from all the consequences of your own voluntary bad behavior.

For my part, I'll be content to drive my old, dumb cars (dumb in two senses) until the wheels fall off. And maybe by then I can buy a car named James and commute by saying, "Home, James," and just enjoy the scenery while the car worries about the congestion on IH-35.

A Note To Readers

For the next two to four weeks I will be pursuing some research in a rather remote location where Internet access is not as reliable as it could be. So I apologize in advance for any delays in my weekly postings, which I will try to keep current as much as possible. For more information about the subject of my research, see www.nightorbs.net.

Sources: The Wired article appeared on May 9, 2008 at http://blog.wired.com/cars/2008/05/a-data-mining-c.html. And Wikipedia has an article that will tell you more than you will ever need to know about the show "My Mother the Car."

Monday, May 05, 2008

I Got the Botts About Bots

My father, God rest his soul, had enough South Texas German in him to be subject to occasional fits of Teutonic depression. He had enough self-awareness to know what was going on when these moods hit him. When we asked him what was bothering him, he'd generally say, "Aw, I've got the botts." (I never saw him write the word down, but for some reason I think it's spelled with two t's.) He passed on many years before the Internet was more than a gleam in a few researchers' eyes, but if he were alive now, he might well have the botts about bots.

A bot is a piece of malevolent software (malware) that infects your computer with the purpose of controlling it to do things that the bot tells it to do. These things are generally not nice. In the case of one of the worst bots, Storm Worm, some observers say that over a million computers took orders from some people who apparently went on the black market to offer denial-of-service attacks to the highest bidder. If a criminal takes up the offer, the victim's website is likely to be inundated with many millions of emails or other automated requests for service, whereupon the target website immediately gets overwhelmed and becomes inaccessible to legitimate users. Creators of botnets have progressed in the last few years from random vandalism to coordinated criminal activity, which is why computer security firms and software providers from Microsoft on down have lately spent so much time and effort combating the problem.

Until recently, people such as myself who use Macintosh computers could ignore bots, since up to 2004 or so no one had bothered to write a bot for Macs. Since only a relatively small percentage of all computers online at a given time are Macs, a malware writer who wants access to the largest number of computers in the shortest time is probably not going to bother writing two different bot programs, one for Macs and one for PCs. (Most legitimate software companies don't either, but that's another story.) But this supposed invulnerability has evidently come to an end. The other day I received a message from the IT division of a university where I do research. It informed me that a Mac on a network node in the lab I was working in was being remotely controlled by a bot. I was alarmed until I called the people and checked the Ethernet ID address, or whatever it's called—an identifying number unique to my computer. The number didn't match mine, so my computer must not have been the one that was zombified. Still, it means there could be a problem in the future.

It turns out that bots tend to use something called IRC, which stands for Internet Relay Chat. This is the old original protocol that enabled the first internet-based chats, before companies started selling proprietary versions. I am not a computer scientist and I don't know why this particular protocol is so useful to botnet masterminds, but it is.

Wouldn't it be nice if we could rewind to the day when the first wide-eyed innocent programmer came up with the neat idea of the IRC in the first place? "Hey, kids, let's make it so we can chat over the Internet in real time." Sounds great. But apparently, there is something fundamentally flawed about that IRC protocol that makes it able to take over people's computers.

I'm sure that was the last thing in the programmer's mind, to put in a built-in flaw that would later be exploited by criminal elements to the harm of thousands of victims, and to the possible legal compromise of millions of people who unknowingly participate in these crimes simply because their computers are hosting bots and follow the orders of their evil digital masters. But hey—with opportunity comes responsibility.

There is an idea in the engineering ethics world called the precautionary principle. Wikipedia defines it this way: "If there is a risk that an action could cause harm, and there is a lack of scientific consensus on the matter, the burden of proof is on those who would support taking the action." You hear more about it in European ethics discussions than in the U. S. Taking it seriously would severely hamper development of new technologies of all kinds. I wonder, though, if the people who developed the early Internet protocols had taken a more cynical view of human nature, and tried to think of all the evil things ill-willed programmers could do with the neat tools they were putting out there, if we might not have some of the problems we struggle with today.

If, for example, the developers of the IRC had taken a prototype version to some creative young bucks who spent their days trying to devise malevolent uses for new software, they might have discovered the extreme usefulness of IRC in botnets. And who knows?—they might have fixed it in a way that stayed permanently embedded in the Internet as it grew faster than almost anyone expected.

It's obviously too late to close the barn door on that particular horse. Now that Macs can harbor bots, I'll just have to be careful and try to make sure I follow good computer hygiene, for whatever good that will do. But people are writing new software all the time, and some of it is destined to be as influential and ubiquitous as the infamous IRC protocol is now. Surely we have learned a lesson about the depths of depravity to which some programmers will stoop. I just hope that people who write software these days take some thought as to how what they develop could be misused in the future, and even twist their minds around to be creative about it—and then fix it so it can't be used that way.

Sources: Slate has a good introduction to the subject of bots at http://www.slate.com/id/2190275/. A recent overview of the subject from a technical perspective can be found at http://8e6labs.com/2007/11/02/overview-of-the-threats-posed-by-bots/.

Monday, April 28, 2008

Should Google Be the World's Librarian?

Book Search is a portal that Google, Inc. is developing to provide access to all the world's books in digital form. How many is that? If you count editions (not individual copies), a recent Associated Press article about the project says there are between 50 and 100 million books in the world. The largest research library that I deal with on a regular basis, at the University of Texas at Austin, has only eight million of these. So clearly, Google will have done a great thing if and when it finishes—although with new books coming out all the time, a project like that is never really finished.

At first glance, this sounds like a great step forward in the history of information, on a par with the invention of printing. There are many parallels between the two events. Before movable type made it possible to produce thousands of identical copies of a manuscript, hand-copied books were rare, expensive treasures that only the wealthy and powerful classes could afford, by and large. But once Europe had dozens of print shops churning out books and pamphlets by the hundreds, prices came down to the point that artisans, shopkeepers, and even some farmers and peasants could afford them. You can make arguments that the Renaissance, the Protestant Reformation, and the Industrial Revolution all depended vitally on the invention of printing.

However, there is one critical difference between the invention of printing and what Google is doing. Print shops, publishers, and the whole network of book production, distribution, and the libraries that developed to house them were under the control of a diverse array of entrepreneurs, private organizations, schools, and governments. On the other hand, Google is, well, Google—a single, monolithic, centrally controlled corporation. Is there any ethical problem with that? It depends.

One thing that may be in danger is what I would term the universal freedom of library access. At any university library worthy of the name, anywhere in the world, any person can simply walk in and look at the general collections, generally without charge. And if you can produce scholarly credentials, you will usually be allowed to examine even the rarest items in their collections, under proper security controls, of course. The only limitation (and this is a severe one, admittedly) is that you have to travel physically to the library in question. But once you're there, you're in.

We have already seen how many internet firms have submitted to the will of dictatorial nations in exchange for the privilege of operating there. In my Mar. 30, 2006 blog, I criticized Google, Yahoo, and Microsoft for kowtowing to the government of the Peoples' Republic of China by restricting users' access to certain sites that the government deemed objectionable. Surely the books and other published works of Chinese dissidents will not be welcome there in electronic form any more than the people themselves, many of whom have endured long prison terms or even death for the "crime" of expressing their opinions.

But that is only one example of how Google, or any entity which has exclusive legal rights to the propagation of large amounts of information in a single medium, could distort or restrict access to the written heritage of the human race.

Am I being paranoid in sensing the potential for some sinister goings-on? I do not presently attribute evil or malign motives to Google, but sometimes things that look good to start with have bad unintended consequences. All I'm saying is that letting a single firm be in control of the way most of the world will in the future access its own written heritage, is at the least an unprecedented step, and potentially a very dangerous one.

The management of Google may all be nice folks now. But what if China gets more prosperous and has so much money in its government-controlled stock investment option that one day it hauls off and buys Google? Sounds ridiculous now, but if you had said in 1965 that in forty years, General Motors would be a money-losing basket case and Japanese car makers would beat them in worldwide sales, you would have gotten peculiar glances then too. Then China would get to say who gets access to what—an eventuality that few people would enjoy or benefit from.

My point is that the concentration of information control in the hands of a few is something to be regarded with caution, to say the least. Same goes for news media, but here we're talking a lot more than just news media—the intellectual heritage of the entire human race is at stake.

Do I have any suggestions? Well, no, in this case I'm just trying to get the ball rolling on a discussion. Even if I owned stock in Google, I have no illusions that they would listen to my opinions about their project. But if we're going to go ahead with this thing, we should at least go into it with our eyes open—as long as we can still see on our own.

Sources: The Associated Press article by Natasha Robinson on Google's Book Search project and its efforts toward the preservation of historical books was published in numerous venues. I saw it in print in the Austin American-Statesman (p. D3 of the Apr. 28, 2008 edition), and a version is accessible online at http://abcnews.go.com/Technology/wireStory?id=4722073.

Monday, April 21, 2008

Human Biological Enhancement and the Ethics of Personhood

Some philosophers of the mind like to try a little thought experiment on their students. It goes something like this. Suppose some years from now, a person—an ordinary human being—gets some dreaded brain disease that gradually destroys his gray matter. But also suppose that medical technology has advanced to the point that as the brain's biological tissue dies, it can be replaced by silicon (or some equivalent futuristic material) that is functionally equivalent to the dying brain part. And so as time goes on, Mr. Brain Patient has more and more of his brain replaced by the future's equivalent of computer chips. At what point, the philosopher asks, does the patient cease to be a human and begin to be a computer?

At one time, you could laugh off the whole thing by saying nobody has ever done such a thing and it's unlikely that they ever will. But no longer. Writing in Technology and Culture, historian Michael D. Bess points out that numerous blind and otherwise disabled people have received brain implants that allow them to see or communicate in ways that are utterly impossible for the rest of us mortals. Having a bunch of wires attached to your brain is not the same thing as replacing your cerebellum with a mainframe, but the border has been crossed. What happens from now on is more a matter of degree than of kind.

Bess foresees not just advances in brain science, but in genetic engineering and pharmacology as well, all leading to what he calls "human biological enhancement." Currently, the goal of most such projects is to use technology to restore the abilities of disabled people to something close to normal: curing genetic diseases, allowing the blind to see, allowing people with strokes or myasthenia gravis who end up "locked in" (unable to move or talk) to communicate via brain waves, and so on. But what is to prevent a person who sees through a computer from attaching an infrared camera to their input so they can see in the dark? Or what if we find a drug that restores Alzheimer's patients to normal brain function, and also gives normal people an IQ of 200? What is to keep us from taking human nature as merely raw material, a rough design to be improved on with increasingly advanced engineering? And what do we call these improved beings? People? Cyborgs? Or something in between?

Bess, for his part, sees no practical way to avoid these changes. The science will keep progressing, and as the natural desire on the part of people to take advantage of enhancements pulls the technology into the marketplace, we will face the issue of how to treat folks who have version numbers after their names (Bess titled his essay "Icarus 2.0"). He imagines that the only way to stop or regulate human biological enhancement would be to pass a worldwide set of laws together with a huge enforcement mechanism to chase down any miscreants trying to do enhancments under the table, so to speak. He sees the very public failure of the attempt to regulate performance-enhancing drugs in sports as a sign that this road is doomed to futility.

What we ought to do instead, he says, is get used to it. Start now to develop an "ethics of personhood" that in his words constitutes "an expanded conception of human dignity, a more generous understanding of the word 'us'." If one day you go to your job and find that the new hire you have to work with moves on wheels, sees through cameras, and accesses the Internet just by thinking, Bess is concerned that somehow you will be tempted to view that being as something other than human. We need to start now to work on that problem so that it doesn't lead to disastrous social consequences.

Well, I'm doing my little bit by drawing your attention to this matter. I'm already working with a colleague who gets around on wheels—he has osteomyelitis and spends most of his day in an electric wheelchair. Perhaps if these changes come along slowly enough, we can get used to them.

But for some reason, in searching history for an encounter between two very different orders of being who both happened to be human, the story of the early Spanish explorations of the New World comes to mind. With their armor, ships, and guns, the Spaniards must have looked to the native Americans like R2D2 looks to us. And sure enough, a whole lot of social disruption and suffering came about as a result of that encounter. But most of the misery and suffering was experienced by the native Americans, not the "enhanced" Spaniards.

Bess seems to be worried that un-enhanced humans will discriminate against the enhanced types, because they'll look odd or peculiar. But the case of Spanish exploitation of the New World suggests that the problems will mostly be experienced by those who, for whatever reason, don't benefit from technologically enhanced abilities. Especially if enhancement is expensive (it will always be at first), you could easily end up with an elite class of enhanced humans who would regard political and social power as their right.

Aldous Huxley's 1932 dystopia Brave New World divided the genetically engineered population of the future into alphas, betas, and gammas, as I recall. The alphas were the natural-born leaders with enhanced intelligence, and the gammas were bred (or manufactured, really) for menial jobs such as elevator operators (Huxley's crystal ball didn't include much in the way of automation). Huxley avoided the problem of having the gammas rise up in revolt when he made their genetic makeup include a natural-born enjoyment of menial tasks.

I don't know about you, but I wouldn't want to live in such a world. Bess is to be congratulated for raising a concern that we ought to start thinking about now. But I believe he's looking in the wrong places for problems. The enhanced types will do just fine—the people we need to start thinking about defending are the poor, the discriminated against, and the unborn, now and perhaps even more in the future.

Sources: Bess's essay "Icarus 2.0: A Historian's Perspective on Human Biological Enhancement" appears in the January 2008 issue of Technology and Culture (vol. 49, no. 1, pp. 114-126).

Monday, April 14, 2008

Thoughts on the Passing of a Zip Drive

In my household we try not to let too much old technology pile up, so after my wife bought a new laptop the other day, we began saying good-bye to her old Mac tower. It gave good service from about 2002 to a couple of years ago, and one of its features we're going to miss is its Zip drive. Zip disks were a removable magnetic-disk storage medium that were popular from the mid-nineties until flash drives came along. The first Zip disks held 100 MB, which was later boosted to 250 MB, but with 1-gig flash drives so cheap now I can't imagine there's much of a market for Zip drives now. Thing is, we have about 40 or so Zip disks that have stuff on them going all the way back to 1988, when my wife first learned to do graphics on a computer. Some of it has been backed up here and there, but if I had to tell you where, I'd be in trouble. So I spent yesterday afternoon transferring a good many of those old Zip disks to a backup drive, and it got me to thinking about the permanent impermanence of digital storage.

Every two to five years or so, a new generation of storage media come along. If the new generation didn't rise up and commit parricide on the previous generation, it wouldn't be so bad. But the hallmark of modern technology is "creative destruction," so for a new storage medium to be successful, it has to drive the previous medium out of existence. True, you can usually find antique drives, media, and even computers that use them if you look hard enough, but having to hunt around and assemble your own computer museum just to read some old files is hardly practical for most people. So the only alternative if you don't want your old data to go away as definitely as if you wrote it on paper and threw the paper on a bonfire, is to transfer it to the next medium. Which is fine for another two to five years, and then. . . .

And that gets me to wondering, what am I saving all this stuff for anyway? The inventor and futurist Ray Kurzweil wrote about this in one of the most human-sounding passages of a book about how we're all eventually going to live as software on hardware that will take over the universe (you think I'm kidding, go read The Singularity Is Near). His father Fredric was a musician and music teacher who fled Germany in the 1930s for the U. S. When he died at 58, the son inherited a large volume of paper documents, recordings, and other memorabilia. After starting a project to digitize all this stuff, Ray reached a conclusion which is as simple as it is startling. It was this: "Information lasts only so long as someone cares about it."

Like many of Kurzweil's philosophical epigrams, it contains elements of truth. I'm sure lots of information, in the form of paper, hard drives, old floppy disks, and so on, is eradicated every day simply because nobody needs or wants it any more, and the space or money it takes up is needed for something else. But just because somebody cares about information doesn't mean it will necessarily endure. Along with caring, the people interested in the data need the resources it takes to preserve it—whether that means space, funding for periodic migrations to new media, or archeological work.

In a way there's nothing new about this. People have been making choices about what information to save and what to toss ever since the invention of writing. Writing and paper are different in degree from Zip disks and flash drives, but not in kind. They are all technologies for the storage of a non-material entity—namely, information—using material media. You can make a good argument that the invention of writing made civilization possible, in that laws, history, customs, religious traditions, and most of what makes a culture could then be preserved independently of particular people with both good memories and the ability to pass their memories on to other people who could do the same. And I'm not one of these people who sit up at night worrying that historians of the future will have nothing to go on after the global catastrophe that wipes out all computer memories everywhere—although if that did happen, we'd all have a lot to worry about, not just the historians.

If we knew for certain whether anybody in the future would care about this or that data file, things would be easier. But you never know. Certain kinds of information, such as emails in the Executive Branch of the U. S. government, are just assumed to have historical importance, which is why the Bush administration got in some trouble a few months ago after admitting that they appear to have "lost" some emails covering several years, and had to recover them from backup tapes.

But for most ordinary, non-historical personages like myself, the candidates for people who will care about your information include yourself in the future, your relatives and children, and maybe a few friends and associates. It's actually a pretty short list. And unless you're a professional historian or plan to become the subject of one, if you don't think your list of carers-in-the-future would be interested in your tax return for 1982, you can just go ahead and throw it away.

Sources: Ray Kurzweil's The Singularity Is Near (Viking, 2005) carries the story of his attempts to archive his father's legacy on pp. 326-330. Zip is a registered trademark of Iomega Corporation, which still sells Zip drives, so maybe I won't worry about backing up those remaining disks just yet.

Monday, April 07, 2008

Whistleblowing on Southwest Airlines: Cracks of Doom or Paperwork Errors?

The lot of a whistleblower is not an easy one. And I'm not talking about football referees. In engineering ethics parlance, a whistleblower is someone who goes public with information about a safety issue, after trying without success to deal with the problem through normal organizational channels. Whistleblowers can toot either before or after something terrible happens, but the consequences for them are usually the same: isolation, criticism, and often the loss of a job or even a career. Their only compensation is the knowledge that, in most cases at least, they did the right thing.

Charlambe "Bobby" Boutris is finding out right now what life as a whistleblower is like. In 1998, the Federal Aviation Administration (FAA) hired him, and an important part of his job was to make sure that airlines complied with what are called Airworthiness Directives (ADs for short). These are rules that the FAA makes to ensure the safety of aircraft, and detail such things as regular fuselage inspections, especially for older planes.

You'd think nothing much could go wrong with the fuselage compared to moving parts like the engine and so on, but think again. If you've ever been on a jet aircraft and looked through a window with a view over the wing, you have probably noticed that the wingtip wiggles up and down several inches during air turbulence. That is perfectly normal, and designed into the way the plane works. If the wing was built solidly enough not to wiggle at all, it would make the plane so heavy that it couldn't get off the ground.

But if you've ever bent a paper clip back and forth until it breaks, you know about a thing called metal fatigue. And not only the wing, but all stress-bearing parts of the fuselage experience tiny movements that over time, can cause metal fatigue and cracks. Most of the time these cracks are small and don't spread. But in 1988, they were responsible for one of the most spectacular airline accidents in aviation history.

Passengers in the first-class section of an Aloha Airlines flight over Maui were astonished to see the roof of the plane pop off and rip away in the violent decompression, taking a flight attendant with it. The pilot, not even fully aware of what happened, quickly adapted to the altered flying characteristics of his plane and safely landed at a nearby airport. The attendant was the only fatality, but clearly, airlines did not want to take the chance of this kind of thing happening again. Investigation showed that the plane, which was one of the oldest in Aloha's fleet, had developed fatigue cracks that had spread to cause the whole top section of the fuselage to fly off.

For this and other very good reasons, the FAA requires air carriers to inspect their fleets for fatigue cracks on a regular basis. Now, these cracks are a statistical thing, like mortality rates. It's hard to predict whether a given plane will develop a crack at a given place by a given time, but the inspections are timed so that on average, any cracks can be caught and repaired well before they become dangerous. But the system works only if you keep to the schedule.

Well, it appears that Southwest Airlines didn't keep to the inspection schedule. In testimony before Congress on April 4, Inspector Boutris told the story of how he found numerous cases in which inspection records were either too mixed up to tell whether the inspections had been done, or showed definitely that planes had gone as long as 30 months past the time when ADs specified they had to be pulled out of service to be inspected. It's illegal to fly a plane in revenue service if it's behind in certain kinds of inspections.

What made matters worse was that when Boutris asked permission from his FAA supervisor to issue a letter of investigation to Southwest in 2007, the supervisor told him to tone it down to a letter of concern, which does not carry the same impact. Eventually, in late March of 2007, Southwest did finish up the late inspections, but only after some airplanes had gone months or years without them. The FAA has announced its intention to fine Southwest ten million dollars for flying the uninspected planes, at least one of which was found to have fatigue cracks after inspections were finally performed.

On a scale of "who cares?" to "stick it to 'em," you can identify two extremes of how one can view this story. If you take the side of Southwest Airlines, you can point out that besides being one of the most profitable airlines in the business, they have never had a catastrophic accident in which more than one person was killed. And that incident, when a ground crew member was pulled into an engine, was due to pilot error, not mechanical failure. True, they didn't follow all the rules, but no harm was done—none of their planes popped their tops like the Aloha Airlines flight did.

On the other extreme, you can say that you keep good safety records like that by following the rules, even if it means grounding a large fraction of your fleet to make overdue inspections. The attitude of Boutris' supervisor appears to be one of "don't rock the boat," which might indicate that he was more concerned with how Southwest Airlines would fare than he was worried about the safety of the flying public, despite the fact that he worked for the government. That indicates systemic organizational problems both within the FAA and Southwest Airlines.

Back in high school, I attended Explorer Scout meetings that were held in the basement of a telephone exchange building. On the wall of the break room was a brass plaque, as I recall, and its words went something like this: "No service is so urgent or no business need is so critical that we fail to perform our work safely." Back then, Ma Bell had a guaranteed monopolistic income, and could afford to make safety priority number one. But I thought it was a great motto at the time, no matter what the business was or how it was doing financially. And I still do. I hope Southwest Airlines agrees with me, not just in words, but in actions as well.

Sources: A video of Mr. Boutris' opening statement before a Congressional committee investigating this matter can be viewed at http://salon.glenrose.net/?view=plink&id=6899. A CNN article on the Southwest Airlines actions and the FAA's response is at http://www.cnn.com/2008/US/03/06/southwest.planes/. The Wikipedia article on Aloha Airlines has a brief description of the 1988 accident.