I agree. There is no explanation why the neural nets work so well. There is just proof it works well for a handful specific games (Chess, Go, Shoggi). Beyond th

I agree. There is no explanation why the neural nets work so well. There is just proof it works well for a handful specific games (Chess, Go, Shoggi). Beyond that it's just inference to the claim that neural nets work for all two-player, zero-sum, perfect information games. However, with the framework they've built it's easy to verify the claim for new games (given sufficient computational power). Maybe that should have been the point made.