Before the 1970s, banks were banks. They did what banks were supposed to do in a state capitalist economy: they took unused funds from your bank account, for example, and transferred them to some potentially useful purpose like helping a family buy a home or send a kid to college.

If humans are organisms like every other organism - which they are - then we should expect that if there are some domains where real scientific progress is possible, then there are others where it is not.

Pakistan will never be able to match the Indian militarily and the effort to do so is taking an immense toll on the society. It's also extremely dangerous with all the weapons development. The two countries have already come close to nuclear confrontation twice and this could get worse. So dealing with the relationship with India is extremely important.

Take pandemics. There could easily be a severe pandemic. A lot of that comes from something we don't pay much attention to: Eating meat. The meat production industry, the industrial production of meat, uses an immense amount of antibiotics.We're now running out of antibiotics that deal with the threat of rapidly mutating bacteria. A lot of that just comes from the meat production industry. Well, do we worry about it? Well, we ought to be.

When Reagan left office, he was the most unpopular living president, apart from Nixon, even below Carter. If you look at his years in office, he was not particularly popular. He was more or less average. He severely harmed the American economy.

[Donald] Trump has been very inconsistent on many things; on Twitter he's been all over the place, but some of it is very consistent. That is: Do nothing about climate change except make it worse. And he's not just speaking for himself, but for the whole Republican Party, the whole leadership. It's already had impact, it will have worse impact.

When people say do you believe in God? what do they mean by it? Do I believe in some spiritual force in the world? In a way, yes. People have thoughts, emotions. If you want to call that a spiritual force, okay. But unless there's some clarification of what we're supposed to believe in or disbelieve in, I can't answer.