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Request: Parfit and the Election

12 Jun 2008 11:43 am

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For our inaugural request blogging, I take the question: "Which candidate's positions are more compatible with Parfit's philosophy, and why?" Parfit is, of course, Derek Parfit the distinguished philosopher and author of the brilliant Reasons and Persons. Were I Real Journalist I could, of course, just ask him. But instead I'll tell you what I think. For these purposes, I'll take "Parfit's philosophy" to mean "the views espoused in Reasons and Persons" since I haven't read the unpublished Climbing the Mountain and don't know what it said.

Parfit's philosophy is notable for its lack of direct engagement on public policy questions about the distribution of wealth, etc. But I'd say that from a Parfittian point of view, the key facts are that, on the one hand human civilization could plausibly persist for thousands of years (or more) but on the other hand it could plausibly be wiped out much sooner than that. Under the circumstances, the key priority is to avoid the Very Bad Outcome of total destruction. This tends not to get discussed in our political debates because it's also a Very Unlikely Outcome but one key point Parfit makes is that there's no ethically defensible reason to indulge the human psychological penchant for ignoring small chances.

Thus, I think you'd have to say that thought the odds of a McCain administration blundering into a civilization-destroying nuclear exchange with Russia are quite remote, they're also much higher than the odds of an Obama administration doing so. Relative to Obama, McCain puts a low priority on avoiding conflict and a high priority on the potential gains of toughness and resolve. It can be plausibly (though I think wrongly) mistakenly argued that the most probable outcome of a bias toward "toughness" is superior to the most probable outcome of a more conciliatory approach, but I don't think it can be denied that the anti-conciliators are increasing the chances of disaster. This pertains not just to Russia, but also to the fact that McCain is more likely to set into motion a chance of events that leads eventually to a Sino-American superpower standoff and a revival of 1950s-1980s situation of an elevated risk of total global destruction.

Similarly, on climate change the worst you can say from a pro-McCain point of view about Barack Obama's approach is that he may be hampering economic growth to an unnecessary degree. McCain, by contrast, is increasing the risk that we'll be exposed to an out-of-control climate feedback mechanism that renders the planet uninhabitable. In both the climate and the geopolitical case, it's conventional in U.S. politics to ignore the difference between a 0.001 percent chance of something happening and a 0.00001 percent chance of it happening, but Parfit warns us that when the consequences of the Very Unlikely Outcome are also Very Bad that we ignore these kind of differences at our peril.

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Comments (29)

The liberal version of the 1% doctrine?

"Were I Real Journalist I could, of course, just ask him."

True you could, but more likely you would ask the question does the perception that Barack Obama seems likelier to read a book by a philospher like Parfit mean he will have trouble with Reagan Democrats? You would point out that nobody is making any accusations and half-concede that your question was apropos of nothing, after which would procede to ask a few "democratic consultants" who choose to remain anonymous because of the sensitivity of the question what they think and compare that to what some Republicans thought. Then you would rehash the Clinton Obama primary, noting Obama's losses in Pennsylvania and West Virginia.

The liberal version of the 1% doctrine?

I thought this would be about which candidate had a better plan on what to do with cases where people split in to two or merged in some way and then we had to figure out what to do with their social security number and the like. Useful stuff, that Parfit.

In both the climate and the geopolitical case, it's conventional in U.S. politics to ignore the difference between a 0.001 percent chance of something happening and a 0.00001 percent chance of it happening,

Anyone know if either candidate has position on those scientists that want to recreate the conditions the existed during the big bang?

You’ve got these guys that think it could the destruction of the universe, and while they’re probably wrong if there is even a .0001% chance they’re right, then I think the project is indefensible.

..Parfit warns us that when the consequences of the Very Unlikely Outcome are also Very Bad that we ignore these kind of differences at our peril.

I am neither a Philosophy major nor knowledgeable about Parfit's work, but why do we need a philosophical tome to understand the concept of expected value of an outcome which combines the probability of the event happening with the value (loss) that is gained from it?

Yeah, I read this post on my google reader and did a double-take. It's not often you see serious professional philosophers referenced in politics and public policy blogs.

Parfit is one strange duck, though. Even for a philosopher. I'm interested to see what my students think of him next semester when we read some of "Reasons and Persons".

This gets into a risk of ruin style analysis that is typically very useful for evaluating situations.

I had the same reaction as Jared. I think Cheney has proven the costs of making decisions out of paranoia and fear. If the "cost" of inaction is always complete annihilation, then action is always required, even if the results are likely disastrous at every other level. Carbon reduction and diplomacy are rational choices in their own right.

I think the reference to the so-called Cheney doctrine are right, and that the approach has merit. I'm consistent on this point--I think that remote risks, like the risk posed by Saddam Hussein in 2002 and the risk posed by global warming, require action.

But the rest of this is just bald assertions: Matt thinks it's more likely that McCain would increase the chance of disaster. I think that Obama is more likely to increase the chance of disaster. Here's an example: Matt would say that someone like Reagan, who was confrontational toward the Soviet Union, increased the risk of disaster. But Reagan helped win the Cold War that way, which greatly reduced the risk of disaster. Matt thinks that appeasement and conciliation and defeatism and weakness always work better, but the record on that point is mixed, to say the least.

Why do you say that a Very Bad Outcome is also a Very Unlikely Outcome? Seriously - I think that's an intellectual prejudice. Maybe it's rooted in the structure of the human mind, or maybe it's rooted in American or Western culture, but it seems like a dubious assumption to me.

Not that I think, necessarily, that a Very Bad Outcome is a Very Probable one, either. Just that these things are hard to measure. To what extent, for instance, is our overuse of antibiotics (on both ourselves and factory-farmed animals) likely to lead to, e.g., a seriously resistant and fast spreading (because of globalization) new TB, or Scarlet Fever, or whatever?

Who knows? Most of the obvious ways in which we might destroy ourselves have to do with biology - with the impact our activities will have on other species, and whether we can survive the ripple of changes through the whole biosphere. But biology is not numerical or precise in that way - you can't easily measure the possibilities of a new epidemic suddenly emerging.

That's why it's best to be paranoid about environmental issues - because of what we don't understand and can't measure, but could obliterate us (most mass extinctions - and we're in the midst of one, obviously - involve the wiping out of most large, surface-dwelling animals. Such as us. Again, what are the probabilities? Who knows? But fear is good).

Pascal's wager isn't convincing evidence for God, WMD, or this. There are reasons to support carbon reduction, etc. that don't rely on innumeracy.

"indulge the human psychological penchant for ignoring small chances"

Yes, if there's anything humans don't pay enough attention to, it's unlikely outcomes. Well, I'm heading out to buy some quick picks. Anyone want to go halvsies?

What a great post. A highly readable example of applying deep thought to contemporary politics. Not that you don't do that often, but this is particularly good.

I was sceptical of you taking requests because it might lead to lots of posts about stuff you're not necessarily interested in or motivated enough to write about - with obvious consequences for quality. Based on this post I was wrong, and choosing from among the many questions those topics you'd like to write about could work very well.

The summary of Climbing the Mountain is 310 pages long. I may give that one a pass.

Damn, Matt, I was just trying to come up with the most parodically godawful request I could think of.

Nice post though.

Parfit actually has written something that is (sort of) politically relevant - namely, "Equality or Priority?" from his 1998 Lindley Lectures. He rejects the Difference Principle in favor of a principle that gives the worst-off a non-veto priority of consideration. It does seem that this principle would have something to say on public affairs, or at least it was so intended.

Incidentally, Bill Gardner, Climbing the Mountain begins with a summary - the link is to a full manuscript, so while Parfit can be less than concise it isn't quite as bad as you fear.

Um, Barack Obama, because because there is no identity of persons through time, psychological continuity is the best we have to go with and ultimately what we care about; and John McCain of 2007-2008 clearly isn't psychologically continuous with John McCain of, say, 2000 (imagine I'm talking about McCain temporal parts, if you will).

That was too easy. Now do the public policy implications of the reductionist view of personal identity.

Bill Gardner, the summary is only the first 20 pages, then the actual manuscript starts.

Matt, I'd say your arguments based on global warming are solid, but your geopolitical arguments are unsound.

Fundamentally, the effect of "toughness" on the likelihood of catastrophe depends on your opponent's behavior. If your opponent interprets your conciliation as a sign that they can take further liberties, and that leads to a more catastrophic conflict down the road, then conciliation increases the probability of catastrophe.

Based on my back of the envelope models of behavior, I advocate a more conciliatory approach to Iran and a less conciliatory approach to China.

I wouldn't bother with Climbing The Mountain, to be honest. To judge by the latest of the samizdat versions that have been circulating for a while, it's way too long, not especially well-written, and in equal parts - if not entirely - slipshod and trite.

But I echo the above. A big "yay!" for Proper Philosophy in a public-interest, political blog. A big improvement on Rod Dreher's half-digested Alasdair MacIntyre

I wouldn't bother with Climbing The Mountain, to be honest. To judge by the latest of the samizdat versions that have been circulating for a while, it's way too long, not especially well-written, and in equal parts - if not entirely - slipshod and trite.

But I echo the above. A big "yay!" for Proper Philosophy in a public-interest, political blog. A big improvement on Rod Dreher's half-digested Alasdair MacIntyre

Matt stumbles back to the only thing he THINKS he knows - philosophy.

"But I'd say that from a Parfittian point of view, the key facts are that, on the one hand human civilization could plausibly persist for thousands of years (or more)"

Wrong - unless you count Transhumans as "human civilization" - which is a plausible reading but quite wrong in context.

"but on the other hand it could plausibly be wiped out much sooner than that."

Bet your ass, chimpanzee - and you are.

"Under the circumstances, the key priority is to avoid the Very Bad Outcome of total destruction. This tends not to get discussed in our political debates because it's also a Very Unlikely Outcome but one key point Parfit makes is that there's no ethically defensible reason to indulge the human psychological penchant for ignoring small chances."

And there's no ethically defensible reason to indulge the human psychological penchant for ignoring BIG chances for a war with Iran.

But you do.

I don't really read the comments here much, so forgive me if this is a well-settled question - but is Richard Steven Hack always such a jerk? Or is he kidding around? If he is I don't get the joke.

I thought I'd share my favorite quote on the way to think about philosophical (or any other kind) of arguments:

"When an argument is no longer viewed as a power struggle, when winning or losing no longer symbolizes killing or being killed, it doesn't matter whether you win or lose; what matters is what the argument allows you to understand that you didn't understand before."
-Virginia Valian


Nah, screw that.

Richard Steve Hack is right! All philosophy must be conducted not but reasoned argument but by snark! Ideally unfunny snark! Where you can't really make out the point he's making!

I think I'm going to rewrite my entire thesis in the medium of smileys.

Matthew: This goes back a ways. Hang in there, you'll figure it out.

Or not.

i'd certainly love for there to be more philosophically oriented discussion in this neck of the blogosphere, although Parfit, and analytical philosophers in general, are, in my opinion, a lesser breed than their continental fellows.

The trouble with estimating the chances of one candidate or the other bringing about an extremely unlikely event, such as nuclear war, is precisely that such events are unlikely. Therefore we have very little data about what is likely to cause them. Neither Reagan's hawkishness nor Carter's dovishness brought about nuclear war, so we don't have any basis to declare McCain more or less likely to cause disaster than Obama.

@Harvey:

Forgive me if I'm wrong, but I think you might have misread. Matt said total destruction was both a Very Bad Outcome and a Very Unlikely Outcome. He didn't say all Very Bad Outcomes are Very Unlikely Outcomes. The point you make is valid but I don't think it applies in this case.


Comments closed June 26, 2008.

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