I don't know whether computers are improving the style of play, I know they are changing it. Chess has become a different game, one could say that computers have changed the world of chess. That is pretty clear.
I don't like to show my emotions at the board, not because they might give something away to an opponent, but because that's my style: I like to keep it to myself.
Every top player has his own style, just as every painter has his own personal signature.
