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Normal_Anomaly comments on Irrational hardware vs. rational software - Less Wrong Discussion

-10 Post author: tygorton 22 May 2012 06:52AM

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Comment author: Normal_Anomaly 22 May 2012 10:13:43AM 5 points [-]

I don't have real world stats, but here's a hypothetical scenario. Say there's a world where there's two options for making money: a lottery with a .0001 percent (1 in 1,000,000) chance of making a billion dollars (EV $1000), or an investment with a 100 percent chance of making a million dollars. The rational thing to do is invest, but the richest people will have bought lottery tickets. So will a great many broke people, but you won't see them on the news.

Comment author: [deleted] 22 May 2012 05:55:31PM *  1 point [-]

careful with your utility function. You need utility to be linear over money to do expected value.

If your goal is to be a billionaire, the ev of the lottery is 1e-6 and the ev of the solid investment is 0. (assigning utility 1 to state of being billionaire and 0 otherwise)