MP: What about Chess960? FC: The thing is I don’t see the need for it. I guess it’s a fun alternative, but when -- maybe preparation plays a big role in classical chess, but in blitz and rapid it doesn’t play much of a role at all. If you’re playing Fischer Random at rapid time controls the position is just so unfamiliar and so complicated from the very beginning and the time is too little. Any player in the world -- even the best -- will immediately start making mistakes from the start, and I don’t see why that makes it more interesting. I think also people will have a harder time following it because the position gets so chaotic so early on. Commentators also probably have a hard time explaining what’s happening.
There's much material for further discussion here, but the bottom line is: chess is a hard game, but chess960 is even harder.