Here's $100 Million. Now Go Fix Something Big

Inside the MacArthur Foundation's risky new experiment in giving away tons of money.
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The MacArthur Foundation is best known for giving open-ended "genius" grants of $625,000 to the people who brought you Hamilton and Radiolab and lots of obscure but similarly accomplished scholars, artists, and thinkers.

Today the philanthropy is announcing a new plan to put $100 million behind a single big idea to solve a social problem.