sark comments on Rationalists don't care about the future - Less Wrong

3 Post author: PhilGoetz 15 May 2011 07:48AM

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Comment author: sark 15 May 2011 12:41:33PM 2 points [-]

May I ask how the doubling time of the economy can suggest how we discount future utility?

Comment author: Manfred 16 May 2011 12:25:43AM *  1 point [-]

People are willing to pay people future money that increases exponentially in exchange for money now (stock trends bear this out and many other sorts of investments are inherently exponential). If we make the (bad, unendorsed by me) simplification that utility is proportional to money, people are willing to pay an exponential amount of future utility for current utility - that is, they discount the value of future utility.