As we have taken diarrhea and pneumonia down, even malaria down quite a bit, the portion of the days that are very early in that 5 years - the first month, the first day - it's about half now. Yet that's the part we understand the least.

When you have a product that has zero sales, it is easy for people to say whatever they want about it and almost fantasize about it.

The early personal computers were not very powerful so the idea of feeding their program into a small amount of memory requires immense skill.

The idea of explaining why free trade is good, why immigration is good, why the world is so connected, that we need to think in terms of humanity and being generous to each other, you know, that's proving to be a challenge.

Personally, I'd like to see more of our leaders take a technocratic approach to solving our biggest problems.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.

Does the universe exist only for me? It's possible. If so, it's sure going well for me, I must admit.