Investing in Distant Rewards

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Science  08 Feb 2013:
Vol. 339, Issue 6120, pp. 627
DOI: 10.1126/science.1235227


Would you spend money today to make the world a substantially better place for your children and grandchildren? Most of us would. But what if the benefit would accrue only to your great-great-great-great-grandchildren, not born until the 22nd century? That's an awfully distant time horizon for most people. Many would probably spend today's resources on more immediate concerns.