If there was an epidemic, that definitely would make people accept vaccines. I wouldn't hope for that, of course, but if you wanted people to love vaccines, an epidemic would remind them how magical they are.

There's no such thing as going to a soapbox and saying, 'The government's corrupt,' and not having the intelligence service see your face. In the digital world, that can be done.

Government investment unlocks a huge amount of private sector activity, but the basic research that we put into IT work that led to the Internet and lots of great companies and jobs, the basic work we put into the health care sector, where it's over $30 billion a year in R&D that led the biotech and pharma jobs. And it creates jobs and it creates new technologies that will be productized. But the government has to prime the pump here. The basic ideas, as in those other industries, start with government investment.

Sometimes, I think my most important job as a CEO is to listen for bad news. If you don't act on it, your people will eventually stop bringing bad news to your attention and that is the beginning of the end.

So not only are we saving lives now, we're creating the incentive for the breakthroughs that over the next generation will mean we can take AIDS, malaria and TB and bring those numbers dramatically down.

There is no doubt PC prices will be coming down.

'I don't know' has become 'I don't know yet'.