And so, the benchmark of human intelligence shifted from chess to Go. Go required deep intuition, creativity, psychological insight, a spark of indefinable genius. In short: all the things that chess was supposed to have possessed just a few years before. All the things machines would never be able to do. Of all the things we humans excel at, moving the goalposts may be our best trick. The moment advanced AIs get good at that, they’ll have passed the real Turing test.