Perhaps concentrated wealth will inspire a nation of innovative problem-solvers. But if the view of many economists is right - that it sometimes discourages innovation - then we should worry.

The Internet is, among other things, a massive, chaotic marketplace. Too much information, it turns out, is a lot like no information.

Hating Wall Street is an American tradition that dates back even to the days when Thomas Jefferson cursed that money lover Alexander Hamilton. And for centuries, the complaints about it have largely stayed the same: 'It does nothing! It creates chaos! It's a parasite that sucks hardworking Americans dry!'

If the American government can't stand behind the dollar, the world's benchmark currency, then the global financial system will very likely enter a new era in which there is much less trade and much less economic growth. It would be, by most accounts, the largest self-imposed financial disaster in history.

As was to be expected, the discovery of the nervous apparatus of the salivary glands immediately impelled physiologists to seek a similar apparatus in other glands lying deeper in the digestive canal.

I've been around a long time, and I've been interested in memory for a long time. And one of my earlier interests in molecular biology of memory led me to define the switch that converts short term to long term memory.

I have issues with anyone who tries to claim that science is unworkable - creationists who deny evidence for past history, yet are happy to benefit from the products of the methodology that they otherwise deny.

If you look at any leaf on any tree branch, it's similar to but not exactly a repetition of the previous branch. So the new science of complexity or showing how an architecture can be produced just as quickly, cheaply and efficiently by using computer production methods to get the slight variation, the self-similarity.