3p1cd3m0n comments on Efficient Charity - Less Wrong

31 Post author: multifoliaterose 04 December 2010 10:27AM

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Comment author: 3p1cd3m0n 26 August 2014 09:47:22PM *  0 points [-]

For many utility functions, I think donating to an organisation working on decreasing existential risk would be incredibly efficient, as:

Even if we use the most conservative of [estimates of the utility of decreasing existential risk], which entirely ignores the possibility of space colonisation and software minds, we find that the expected loss of an existential catastrophe is greater than the value of 10^16 human lives. This implies that the expected value of reducing existential risk by a mere one millionth of one percentage point is at least a hundred times the value of a million human lives. (Bostrom, Existential Risk Prevention as Global Priority)

Comment author: Jiro 27 August 2014 02:41:33PM 0 points [-]

Doesn't that fall prey to Pascal's Mugging?

Comment author: 3p1cd3m0n 27 August 2014 05:54:17PM 0 points [-]

I don't think decreasing existential risk falls into it, because the probability of an existential catastrophe isn't extremely small. One survey taken at Oxford predicted that there was a ~19% chance of human extinction prior to 2100. Determining the probability of existential catastrophe is very challenging and the aforementioned statistic should be viewed skeptically, but a probability anywhere near 19% would still (as far as I can tell) prevent to from falling prey to Pascal's mugging.

Comment author: Jiro 27 August 2014 06:03:57PM *  0 points [-]

But your earlier quote says that it makes sense to reduce risk by a millionth of a percentage point because the expected value of lives saved is still large. It doesn't propose reducing the risk from 19% to nothing; it proposes reducing the risk by a tiny amount. Only in the unlikely event that that tiny change happens to be the tipping point that prevents extinction would this reduction be beneficial; the expected value is derived by multiplying this unlikelihood by the large number of lives saved were it to be true. That sounds like Pascal's Mugging. I agree that it wouldn't be Pascal's Mugging to reduce the 19% to 0, but I think that reducing it to 18.999999% is.

Comment author: 3p1cd3m0n 28 August 2014 05:00:18PM 0 points [-]

I see what you mean. I don't really know enough about Pascal's mugging to determine whether decreasing existential risk be 1 millionth of a percent is worth it, but it's a moot point, as it seems reasonable that existential risk could be reduced by far more than 1 millionth of one percent.