Decius comments on On the importance of taking limits: Infinite Spheres of Utility - Less Wrong

23 Post author: aspera 12 October 2013 09:18PM

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Comment author: Decius 09 October 2013 10:39:44PM 2 points [-]

Conclusions that involve infinity cannot generally be generalized to any finite solution; this seems like a 'each monkey now has two bananas' moment.

Comment author: Manfred 10 October 2013 12:35:43PM *  1 point [-]

The finite analogue come from the fact that infinity minus infinity is undefined, and can be anything from "still infinity" (like if you had infinity people and then only sent away the even numbered ones) to any number you choose, to negative infinity. In a finite problem, the answer becomes well-defined, but there are multiple possible answers.

Comment author: [deleted] 19 October 2013 07:23:07PM 0 points [-]

Yeah, that's the point.

Comment author: Decius 19 October 2013 10:27:13PM 0 points [-]

Consider the converse: Is there a way to arrange the days and people such that it is better to start in hell? Trivially, it seems like the simple solution is that way, since each person leaves hell after a finite number of days and then spends infinity days in heaven, but I lack the concept which allows me to find the amount of time the average person spends in hell.

Comment author: aspera 10 October 2013 10:58:30PM 0 points [-]

By the way, are you talking about this meme, or is there another problem with monkeys and bananas?

Comment author: Decius 11 October 2013 02:23:31AM 1 point [-]

I was talking about the math that spawned that meme, yes.