The only human to outsmart Google's AlphaGo says artificial intelligence 'cannot be defeated'

There's no shortage of questions surrounding artificial intelligence, but one thing is indisputable: AI is really good at Go. So good, in fact, that it's sent Lee So-dol, a former world champion and 9-dan Go master, into retirement after he realized artificial intelligence programs have become effectively unbeatable. 'With the debut of AI in Go games, I've realized that I'm not at the top even if I become the number one through frantic efforts,' he said after announcing his retirement. 'Even if I become the number one, there is an entity that cannot be defeated.' Lee Se-dol, South Korea's Go champion and the only human to win a game against Google's AlphaGo, has announced his retirement after declaring that AI'cannot be defeated' So-dol is the only human to have ever beaten AlphaGo, the dominant AI program developed by Google's DeepMind.