Two years from now, spam will be solved.

Like any well designed software product, Windows is designed, developed and tested as an integrated whole.

In fact, batteries haven't improved over the last 100 years as much as they would need to in order to make that happen. So I'm invested in a lot of battery companies - and there's a lot that exists I'm not in. They're all having a tough time achieving it.

The government's ability to select scientists and pick things that are fairly strange, because politicians don't like failures. They're only in office a short term, and many of these things take a long time.

Don't let yourself be lulled into inaction.

My experience of malaria was just taking anti-malarials, which give you strange dreams, because I don't want to get malaria.

In programming when you're making a change you have to know all the affected places, and you have to be able to model in your head what the performance impact will be.