good reddit discussion a while back. http://www.reddit.com/r/Economics/comments/b1w3n/markets_are_efficient_if_and_only_if_p_np_and_he/c0kji78 http://www.reddi

good reddit discussion a while back. http://www.reddit.com/r/Economics/comments/b1w3n/markets_are_efficient_if_and_only_if_p_np_and_he/c0kji78 http://www.reddit.com/r/Economics/comments/b1w3n/markets_are... "TLDR: Markets aren't efficient"