[dane-pgp]

I don't want to pull back the curtain too much, but surely DeepMind foresaw the possibility of AlphaGo winning and then Lee Sedol losing confidence or interest in the game, which would generate a load of bad publicity for them.

So it would make sense for DeepMind's contract with him to contain a clause requiring him to continue playing go professionally for a few years (but not necessarily put much effort into it), as well as the standard non-disparagement clauses.

In fact, I wouldn't be surprised if AlphaGo was programmed to throw the forth game after securing the win with the first three of the five games. That gives Lee some bragging rights, and makes for a more hopeful story than "Computer stomps likeable human".