Computing has gone from something tiny and specialized to something that affects every walk of life. It doesn't make sense anymore to think of it as just one discipline. I expect to see separate departments of user interface, for example, to start emerging at universities.

The techniques of being an Internet visionary are just like those of lower-tech fortunetellers through the ages. A technological visionary must tell people what they want to hear, because your company's stock won't rise if you spout an unpopular vision to analysts.

Most decisions are seat-of-the-pants judgments. You can create a rationale for anything. In the end, most decisions are based on intuition and faith.

Words can hurt you. In the larger world, it frames how people think about you, and it can hurt you in lots of little, subtle ways.

The first thing that is not obvious to people is global warming is a less-than-1% effect. It's like being shortchanged at the bank by a penny every dollar. Over a long period of time with lots of transactions, that piles up.

The magic words 'on the Internet,' if inserted into nearly any sentence, seem to protect it from normal critical scrutiny.

One of the ugly secrets of the renewable-energy industry is that its products make no economic sense unless they are highly subsidized.