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.

Any version of Windows is going to have lots of great new things that people use and things that are tough.

Thinking about impact on children meant adding to the agenda, both the R&D agenda and the delivery agenda, but it's amazing news, even in the scale of other tragedies.

I believe that if you show people the problems and you show them the solutions they will be moved to act.

In 1990, one in 10 children died before the age of five. That's now down to one in 20, and vaccines were the single biggest factor in that. Had it stayed at 10 percent, 122 million more children would have died.

Bitcoin is mostly about anonymous transactions, and I don't think over time that's a good way to go. I'm a huge believe in digital currency... but doing it on an anonymous basis I think that leads to some abuses, so I'm not involved in Bitcoin.

Let's face it, the average computer user has the brain of a Spider Monkey.