I dunno whether its that funny, but its the sleeping beauty problem in anthropics, where you can alter subjective probabilities (e.g. of winning the lottery) by waking people up and giving them an amnesia-inducing drug. Only in this case, sleeping beauty is drunk.
Of course, explained like this it definitely isn't funny
This is a thread for rationality-related or LW-related jokes and humor. Please post jokes (new or old) in the comments.
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Q: Why are Chromebooks good Bayesians?
A: Because they frequently update!
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A super-intelligent AI walks out of a box...
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Q: Why did the psychopathic utilitarian push a fat man in front of a trolley?
A: Just for fun.