But eventually it's a question of access: Getting access to fields is on top of the oil companies' agenda. We see a substantial build-up of supply occurring over the coming years.

If a war started, the oil price probably would go up, as you said, maybe $5, $6 a barrel until you saw other oil from the extra supplies that are available elsewhere coming into the world, into the market.

The bulk of extra supplies that could be put into the market come from two places. One, they come from other Persian Gulf suppliers, of which Saudi Arabia is at the top of the list.

It's extraordinary how inventive one can be with ethanol right now.

Every social media post should have a beautiful graphic. If there are two identical stories, the one with the beautiful graphic will always win.

I mean, when you get down to very low numbers of nuclear weapons, and you contemplate going to zero, how do you deal with the reality of that technology being available to almost any country that seeks to pursue it? And what conditions do you put in place?

Making AI more sensitive to the full scope of human thought is no simple task. The solutions are likely to require insights derived from fields beyond computer science, which means programmers will have to learn to collaborate more often with experts in other domains.

Languages evolve; ideas blend together. In computer technology, we all stand on others' shoulders.