Go Champion Retires After Realizing AI Is 'an Entity That Cannot Be Defeated'

One of the world's top human champions of Go has decided to retire from playing the strategy game professionally, citing AI as a reason he feels he can no longer compete. South Korean Go player Lee Sedol gained international notoriety in March 2016 when he took on Google Deepmind's artificial intelligence AlphaGo. The machine won four out of five matches against Sedol, proving that AI is advanced enough to beat humanity at one of its most complex abstract strategy games. Sedol did not hide his sense of failure after his losses. "I don't know how to start or what to say today, but I think I would have to express my apologies first," he said after the third match.