Software will get to be somewhat more mature, ah, but it will never be as predictable as most areas of engineering.

Well the Global Fund, because of how well it's worked on not only AIDS, but also malaria and tuberculosis, I'd say it's well accepted. I mean, it's not politically controversial that this is a great humanitarian effort. But budgets are very very tight.

We believe the world changes when the boldest thinking is directed at the toughest problems

Getting the word out that, yes vaccines are great, the safety data's very, very clear, including any of these specific concerns, that's very important to our foundation.

There's 20 companies that I have investments in - some batteries, some solar-thermal, one big nuclear thing. We need hundreds and hundreds of companies like that, so that in a 20-year time frame we really are starting to change the energy infrastructure.

I'm not an educator ... I'm a learner.

It is hard to overstate how valuable it is to have all the incredible tools that are used for human disease to study plants.