In low-income countries, the main problems you have is infectious diseases.

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.

Digital reading will completely take over. It's lightweight and it's fantastic for sharing. Over time it will take over.

This is a fantastic time to be entering the business world, because business is going to change more in the next 10 years than it has in the last 50.

I'm certainly well taken care of in terms of food and clothes ... Money has no utility to me beyond a certain point. Its utility is entirely in building an organization and getting the resources out to the poorest in the world.

The first big effects will be farmers that live on the edge. Today's weather, they barely get by. Their kids, a high percentage are malnourished, and so if you impose more variable weather and more heat, you're getting more floods, more droughts, and during the germination time, the high heat, most crops...do poorly when there's more heat.

When you program, you want to think you're writing the best possible program for the... for the task you're trying to solve.