I have a guest post up on the Freakonomics blog, taking readers’ questions. Here’s a sample:
Q. If a reasonably intelligent young person today is looking to make as big a contribution to society as possible, is he or she better off making a small impact on something very large (like federal policy) or picking one particular problem and spending a lifetime attacking it (like curing a disease or improving public education in a country or even city)? — Matt
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