Our skin, our borders, all seem petty compared to alien races and the scale of galaxies. Nobody in the Star Wars universe cares about white or black humans, it seems, and what meaning could physical appearance possibly have when there are sentient beings that look like lobsters or like Jabba the Hutt? Unfortunately, in the real world, such hopeful sentiments are regularly refuted by our stubborn insistence on always finding someone to discriminate against.

Dictators are not strategists in the way I normally use that term. All the dictator cares about is survival. That means constantly worrying about the tactical response, "What do I do today, tonight, tomorrow morning, to stay alive?" Vladimir Putin doesn't care what happens a year or five years from now. He just cares about staying in the game. That is all he needs to survive.

The only successor to President Putin is President Putin himself and we could of course dream about President Putin stepping down voluntarily and picking out successor which would be probably as bad as him.

I would not draw definitive conclusions from that. If we look at South and North Korea, it is pretty hard to believe that we're dealing with the same people. Half of the people are forced to live in a concentration camp; the other have created one of the most dynamic economies in the world.

We see threats to liberal democracy coming from lots of directions. We have to create something new, a common response, because in so many places - the UK, France, Germany - ultranationalists and the far left threaten the free market and liberal democracy.

Nervous energy is the ammunition we take into any mental battle. If you don't have enough of it, your concentration will fade. If you have a surplus, the results will explode.

For young players, their minds are not overloaded. I am 54 with four kids and I do many other things. Even if I stopped everything else, spent months working just on chess, for a long match against most of the top players, a classical match, six hours, say, I don't stand a chance. I have a better chance in shorter matches. Rapid is 25 minutes, or blitz events where you have five minutes to make a move, or bullet games, where it is one minute. For blitz, five-minutes chess, I would be top ten, top five. But longer games, no chance.