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Nebu comments on JFK was not assassinated: prior probability zero events - Less Wrong Discussion

20 Post author: Stuart_Armstrong 27 April 2016 11:47AM

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Comment author: Nebu 28 April 2016 03:09:04AM 0 points [-]

suppose that we (or Omega, since we're going to assume nigh omniscience) asked the person whether JFK was murdered by Lee Harvey Oswald or not, and if they get it wrong, then they are killed/tortured/dust-specked into oblivion/whatever.

Okay, but what is the utility function Omega is trying to optimize?

Let's say you walk up to Omega, tell it "was JFK murdered by Lee Harvey Oswald or not? And by the way, if you get this wrong, I am going to kill you/torture you/dust-spec you."

Unless we've figured out how to build safe oracles, with very high probability, Omega is not a safe oracle. Via https://arbital.com/p/instrumental_convergence/, even though Omega may or may not care if it gets tortured/dust-speced, we can assume it doesn't want to get killed. So what is it going to do?

Do you think it's going to tell you what it thinks is the true answer? Or do you think it's going to tell you the answer that will minimize the risk of it getting killed?

Comment author: jollybard 28 April 2016 02:09:48PM 0 points [-]

That wasn't really my point, but I see what you mean. The point was that it is possible to have a situation where the 0 prior does have specific consequences, not that it's likely, but you're right that my example was a bit off, since obviously the person getting interrogated should just lie about it.