What Have You Changed Your Mind About?

Even geniuses change their minds sometimes.

Edge (www.edge.org), the influential online intellectual salon, recently asked 150 high-powered thinkers to discuss their most telling missteps and reconsiderations: What have you changed your mind about? The answers are brilliant, eye-opening, fascinating, sometimes shocking, and certain to kick-start countless passionate debates.

Steven Pinker on the fut...