I think most people will still play Go for fun or some competitive level... But if you're being measured against AI, I don't think you'd find it much fun anymo

I think most people will still play Go for fun or some competitive level... But if you're being measured against AI, I don't think you'd find it much fun anymore. As someone else commented, we're not faster than cars. But if you were at one point the fastest entity, and then people keep saying "well, a car is faster than you"...I can understand that he'd feel it diminishes his value and that'd be pretty discouraging. He will play another AI program soon and isn't quitting Go all together, but will find other things to do. 'Lee didn't deny that his retirement decision was also influenced by a conflict with the KBA over the use of membership fees. He actually quit the KBA in May 2016 and is now suing the association for the return of his membership fee.'