It was an enormous surprise that it happened so quickly, but I do think the Go community thought it would happen in a decade or more. Monte Carlo methods had ma

It was an enormous surprise that it happened so quickly, but I do think the Go community thought it would happen in a decade or more. Monte Carlo methods had made a lot of progress, and researchers were having good results with neural nets in 2015. http://senseis.xmp.net/?ComputerGo http://senseis.xmp.net/?ComputerGo (Note, I read various things from Go programmers, but don't work on that myself).