Almost three years ago, when I retired, my wife and I were talking about our philanthropic work and how does one help give opportunity, particularly to kids growing up in very disadvantaged situations.And my initial kind of sense was, the government does that primarily, and what we should mostly do is pay our taxes. My wife said, no, I don't think that's quite right for us. We need to do more. We can do better.

I love the fact that Satya Nadella's checked the checkbox for cross-platform for a number of our services. I still think it's very important to do the right kind of innovative integration across Windows and our hardware platforms with our cloud services. I think the company's doing a lot of good stuff. Real competition in AWS. Real competition in terms of the clients, particularly from a hardware perspective, there's also [competition] from Chrome. But all in all pretty good.

Every NBA arena has six cameras in the ceiling. The question is what does the software do with video feeds? How to surface that in a set of analytics? There are some "playbooks," but in most sports these days what you really want to share out with coaches and players is a set of video that lets you visualize what's going on and what's the best way to do things.

We're going to think big, we're going to bet big.

In a sense technology is a tool of sort of individual choice, individual creativity, individual empowerment, individual access. My kids will never understand that it used to be kind of hard to access and find things, and know what the world knows and see what the world sees. Yet it becomes easier and easier every day.

Everyone likes to differentiate between business and consumers but I don't see the difference really. Most people are people. I get personal and business mail and I have one set of contacts from my life. I don't want to manage two sets. I want one view of my world.

It's hard to invent a new thing, and it's just as hard to invent another new thing.