We know that for the last 300 or 400 years, the size of human bodies is growing. Now what happened is that we suddenly, in history, have the backward process. We have these great Greek athletes, we have ultra-powerful Roman soldiers. You look at the size of the Roman soldier who has to carry all this ammunition. You're talking about 300,000 Arnold Schwartzeneggers.

Losing can persuade you to change what doesn't need to be changed, and winning can convince you everything is fine even if you are on the brink of disaster.

By this measure (on the gap between Fischer & his contemporaries), I consider him the greatest world champion

A machine helps us to annihilate our weaknesses. We don't have a steady hand. We can lose all vigilance. We can be distracted by something that is not that relevant. But we have intuition. We can feel certain things. And with a machine you can check whether it's right or wrong. That's why by bringing the two together, you create a very, very powerful combination.

Revenge for a terror attack is ideal for Putin's model. His propaganda machine will be filled with scenes of crash victims if [Vladimir] Putin sees the need for a larger war to stoke his domestic support again as the Russian economy teeters.

[Vladimir] Putin is more of a poker player. In poker, unlike chess, you can effectively compensate for a very weak hand by bluffing. There are fixed rules in chess, and no one knows how the game will end. Things are currently the other way around in Putin's realm. But it won't stay that way forever.

I think Russian people are learning that democracy is not an alien thing; it's not a western invention.