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13.2.09

Trolley logic

Neil Sinhababu offers a new variant on the classic trolley problems -- in this one, you're near the five potential victims on the track but have a button you can push to collapse a distant scaffolding, on which one person (BMI not specified) is standing, to stop a runaway train. My first suspicion, posted there in the comment section, was that he was trying to debunk the whole intuitionist enterprise by showing how few people are willing to give straight answers to this kind of unrealistic hypothetical, calling into question statements like "obviously our intuition is that you should do X" or "Y% of people agree that you should do X."

(Philosophers are generally not keen on this sort of resistance, seeing it as uncooperativeness or an attempt to dodge having to make a tough decision. That's certainly one element, but I think another important feature is that intuitive moral judgment is a learned skill, not an innate faculty. So it makes some sense to think that intuitions about unrealistic hypotheticals -- ones far removed from the types of situations people have practice in navigating -- don't tell us much. This is not to say, however, that intuitions about common situations are necessarily better. If I may reference Jane Addams again, intuitions become reliable when we reflectively engage in a diversity of morally significant situations.)

My second theory -- which I tried to post but was foiled by clogged internets tubes -- was somewhat confirmed by Sinhababu's later post. The classic trolley problem dilemma is that people are unwilling to push a fat man onto the track to stop a runaway train that would otherwise kill five innocent people, but are willing to throw a switch to send the train onto a side track where only one potential victim is sitting. I had a suspicion he might be trying to separate the "immediateness" explanation of the former intuition (you don't want to do it because you're so physically close to the fat man and his death) from the other possibilities (doctrine of double effect, etc).

Sinhababu takes his theory as confirmed -- people seemed more open to pushing the scaffold-collapsing button than are usually willing to push the fat man. What I found interesting was the reasoning offered by commenters on that post. As I read it, most people offered reasons that weren't particularly sensitive to the details of the case -- either that it's always OK to sacrifice one person to save five, because more lives is better, or it's never OK, because you're actively killing the one person. If we were to hold commenters to their stated logics here, we should theoretically get the same results if we present them with either the fat man version (where typically hardly anyone will sacrifice one to save five) or the side track version (which most people are willing to do).

It would be interesting to test -- perhaps someone has already done this -- the contrast between how sensitive people actually are to details of scenarios versus the breadth of the reasons they assert to explain and justify their choice. I know there has been a substantial body of research showing that most moral reasoning is post-hoc rationalization of intuitive processes rather than reporting the actual process by which the person came to their conclusions.

(To reveal my own biases, I have a generally consequentialist viewpoint, and in particular I have yet to come upon a very convincing justification for the act-omission distinction that anti-consequentialist responses to trolley problems and related one-versus-many dilemmas (involving lifeguards, vaccines, evil executioners, etc) seem to turn on. So I always say I would be willing to sacrifice the one for the many if I were to truly be in the scenario as described. But I am extremely uncomfortable with that choice in some scenarios (albeit less than many other people), and would probably not be able to go through with it in real life.)

12.2.09

Small instances of sexism

I just went to John McCain's senate contact page to give him a piece of my mind about being the only member of the Committee on Homeland Security and Governmental Affairs to vote against giving the District of Columbia a voting representative in the House. His website requires that you select a prefix. Among the options is "Dr. and Mrs." -- but no "Dr. and Mr." (John Kerry's site, on the other hand, does include both versions -- though despite the legalization of same-sex marriage in his state, he does not offer "Mr. and Mr." or "Ms. and Ms.")

McCain's list of issues you may be contacting him about is also incoherent. He has separate listings for "Border Control," "Illegal Immigration," "Immigration/Border Issues," and "Border Control" (again); and separate entries for "Wildlife" and "Fish and Wildlife."

10.2.09

They're not even trying

So today the Obama administration announced that it's going to review the Bush administration's use of the "state secrets" privilege to cover up its crimes. What we're meant to take away from this, of course, is that Bush's people abused this power and the new administration is going to bring some integrity to the process. So what, do you think, did Obama's lawyers do today in a high profile court case? If you guessed "invoke state secrets in a blatantly Bushian way," congratulations!

I'm happy to take a "wait and see" approach to campaign promises like economic stimulus, withdrawal from Iraq, or health care reform, where it takes more than a few weeks to get the a new policy up and running. But if you're promising a new direction, you don't keep pushing harder in the old direction.

9.2.09

In vitro meat and human diversity

If in vitro meat is developed to the point where it's commercially viable and doesn't require the ongoing exploitation of actual sentient creatures to produce, I see no moral problem in eating it. I would count it no different from soy burgers, margarine, Oreos, or any other industrially-produced food item. By the time such a product is on the market I imagine I will have been meatless for long enough that I'd find eating it merely personally unpleasant, though I'd make an exception to try in vitro human*.

I find it interesting, though, that the debate over in vitro meat is always framed as making concessions. In vitro meat is presented as a sort of sop to incorrigible carnivores, a way to accommodate the people who say "I see all your points about the horrible suffering and exploitation that meat production involves, but on the other hand bacon is tasty." It's understandable that vegans would feel reluctant to let these people "win," to effectively admit that they can't, and don't have to be, won over to see that they can be perfectly happy and healthy eating plants. Offering them in vitro meat seems to concede that they had a point about the imperative tastiness of meat.

But when I think of in vitro meat, I don't think primarily of incorrigible carnivores (many of whom, I imagine, would be reluctant to let vegans "win" by admitting that animal suffering or rights should factor into their eating decisions even if they get to keep eating meat). Nor do I think of vegans who stick with it but still sometimes crave animal flesh. The first thing that comes to my mind is people whose bodies don't cooperate with a purely plant diet. Both vegans and omnivores have an unfortunate tendency to universalize the human body, with blanket declarations that people either can or can't be healthy without animal products. In reality, our needs vary. The vegan universalizing position is closer to true than the omnivorous universalizing assumptions prevalent in modern Western culture. However, some people, because of the way their bodies handle (or can't handle) certain forms of protein or vitamins, find it extremely difficult -- or even impossible -- to maintain a reasonable standard of well-being without consuming animal products, even under optimal socio-economic conditions. (And some people's bodies go the opposite way, finding it hard to subsist on animal products.) In vitro meat solves the mismatch between these folks' bodily demands and the interests of the potential foodstuffs available in their environment.


*Perhaps some enterprising company could get the readers of "odd news" columns all a-twitter by offering to grow you an in vitro steak made out of your own cells.

8.2.09

You can see it from space!

Massive bushfires are burning in Australia. In order to describe their magnitude, the AP reports that:

The fires were so massive they were visible from space Saturday. NASA released satellite photographs showing a white cloud of smoke across southeastern Australia.


But "you can see it from space!" is a silly way to indicate how big something is -- because we have satellites with very high-resolution cameras that can see some pretty small things. NASA's photo of the smoke plume from the current Victorian fires is impressive, and certainly gives you a sense of their scale. But there's nothing remarkable about the fact that the fires are simply visible at all. The photo the AP got was from MODIS, which has a resolution of up to 250 meters -- fine enough to catch plenty of small fires, some too small to even make the news (perhaps we should say "this fire is so big global news agencies are covering it!"). Here's a global map of fires updated constantly from MODIS data. Some of NASA's other sensors, those aboard Landsat, collect images with a 15 meter resolution. Europe's SPOT satellite can do 2.5 meters. Things don't have to be very big to be visible from space these days.

(On a related note, it's not true that the Great Wall of China is the only human-made object visible from space, or from the moon.)