When people can learn what others think, the wisdom of crowds may veer towards ignorance. In a new study of crowd wisdom — the statistical phenomenon by which individual biases cancel each other out, distilling hundreds or thousands of individual guesses into uncannily accurate average answers — researchers told test participants about their peers’ guesses. […] Study participants were asked how ma
![Sharing Information Corrupts Wisdom of Crowds](https://cdn-ak-scissors.b.st-hatena.com/image/square/6f3b6ad068392aa0564c9f9a062275176271fad2/height=288;version=1;width=512/https%3A%2F%2Fmedia.wired.com%2Fphotos%2F5955d4355992c54331ac1b85%2F191%3A100%2Fw_1280%2Cc_limit%2Fcrowd_estimates1.jpg)