DOS is ugly and interferes with users' experience.

Unfortunately, the highly curious student is a small percentage of the kids.

We are not even close to finishing the basic dream of what the PC can be.

The truth of Moore's law has made remarkable things possible. On the software side, I think natural user interfaces in all their forms are equally significant.

How we deal with the AIDS epidemic should be one of the greatest ways that the world gets measured. The report card for this era.

Intermittency [in availability for wind and solar] changes the economics, particularly this requirement that the power company at all times be able to require power. That's large.

Vaccination is pretty special because you can do a vaccination campaign anywhere in the world. All you are doing is gathering women from the villages, getting them the vaccines and asking them to go around and find the children.