Another trick in software is to avoid rewriting the software by using a piece that's already been written, so called component approach which the latest term for this in the most advanced form is what's called Object Oriented Programming.

Measles will always show you if someone isn't doing a good job on vaccinations. Kids will start dying of measles.

In 80% of the world, energy will be bought where it is economic. You have to help the rest of the world get energy at a reasonable price.

The spread of online information isn't just good for charities. It's also good for donors. You can go to a site like Charity Navigator, which evaluates nonprofits on their financial health as well as the amount of information they share about their work.

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.

We have over 60 million machines that can take the same diskette, plug it in and immediately ah, that that software's working. And so it's created the worldwide software industry that... that is so very competitive and moving so quickly.

Inspiration starts somewhere.