Why it's a big deal that AI knows how to bluff in poker

As the great Kenny Rogers once said, a good gambler has to know when to hold'em and know when to fold'em. At the Rivers Casino in Pittsburgh this week, a computer program called Libratus may finally prove that computers can do this better than any human card player. Libratus is playing thousands of games of heads-up, or two-player, no-limit Texas hold'em against several expert professional poker players. Now a little more than halfway through the 20-day contest, Libratus is up by almost $800,000 against its human opponents. So victory, while far from guaranteed, may well be in the cards. A win for Libratus would be a huge achievement in artificial intelligence.