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Re:Markets are Efficient if and Only if P = NP by tokenadult on Wednesday August 17, 2011 @12:02PM (#2895782)
Hacker News submission and discussion from 540 days ago of previous version of same author's paper:

http://news.ycombinator.com/item?id=1144548

Re:Markets are Efficient if and Only if P = NP by nopassrecover on Wednesday August 17, 2011 @08:44PM (#2897520)
I also posted the author's video explanation here the other day: http://news.ycombinator.com/item?id=2867429