CronoDAS comments on My Fundamental Question About Omega - Less Wrong

6 Post author: MrHen 10 February 2010 05:26PM

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Comment author: CronoDAS 11 February 2010 11:34:24AM 2 points [-]

My answer is that you will give Omega $5. If you don't, Omega wouldn't have made the prediction. If Omega made the prediction AND you don't give $5 than the definition of Omega is flawed and we have to redefine Omega.

I agree with that. I don't expect a perfect predictor to make that prediction, though, but if it were made, then I'd find myself handing over the $5 for some reason or other.

Comment author: Stuart_Armstrong 12 February 2010 02:54:24PM 2 points [-]

Yes, you would expect that you would find yourself handing over the money. If told "Omega will soon predict that you will give him $5", then you divide the universe into two categories - I will give over $5, or I won't - and assign much greater probability to the first option.

But that is not a reason to give him $5 if you otherwise wouldn't. It's a reason to expect that there will compelling reasons to make you do it - but if these compelling reasons don't materialise, there is no reason for you to act as if they were there.

Comment author: CronoDAS 13 February 2010 05:35:44PM 0 points [-]

Yes, I agree with this.