Suppose that every prospective parent in the world stopped having children naturally, and instead produced clones of themselves. What would the world be like in another 20 or 30 years? The answer is: much like today. Cloning would only copy the genetic aspects of people who are already here.

Researchers who examined the voting records of wine judges found that 90 percent of the time they give inconsistent ratings to a particular wine when they judge it on multiple occasions.

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

My company invents all kinds of new technology in lots of different areas. And we do that for a couple of reasons. We invent for fun - invention is a lot of fun to do - and we also invent for profit. The two are related because the profit actually takes long enough that if it isn't fun, you wouldn't have the time to do it.

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

We collectively have a special place in our heart for the manned space flight program - Apollo nostalgia is one element, but that is only part of it. American culture worships explorers - look at the fame of Lewis and Clark, for example. The American people want to think of themselves as supporting exploration.

Anybody who can afford a box of business cards can afford a Web site. Any company with an 800 number can move its services to the Web for peanuts by comparison. The extreme case of corporate promotion is to strip away all other aspects of your business and sell goods or services via the Net alone, as amazon.com has done with books.