Countries which receive aid do graduate. Within a generation, Korea went from being a big recipient to being a big aid donor. China used to get quite a bit of aid; now it's aid-neutral.

India is more of an aid recipient than a provider of aid.

Certainly I'll never be able to put myself in the situation that people growing up in the less developed countries are in. I've gotten a bit of a sense of it by being out there and meeting people and talking with them.

Skype actually does get a fair bit of revenue.

Capitalism has worked very well. Anyone who wants to move to North Korea is welcome.

I don't like typing messages on my phone. Some people get used to it.