Jonah Lehrer's New Yorker Post Borrows From His Wall Street Journal Piece

06/19/2012 03:19 pm ET | Updated Aug 19, 2012

Last Tuesday, The New Yorker posted Jonah Lehrer's "Why Smart People Are Stupid." It begins this way:

Here's a simple arithmetic question: A bat and ball cost a dollar and ten cents. The bat costs a dollar more than the ball. How much does the ball cost?