In embracing change, entrepreneurs ensure social and economic stability.

Unlike an inexorable, Newtonian "great machine", the economy is not a closed system.

In a world of dumb terminals and telephones, networks had to be smart. But in a world of smart terminals, networks have to be dumb.

At the heart of capitalism is the unification of knowledge and power. As Friedrich Hayek, the leader of the Austrian school of economics, put it, "To assume all the knowledge to be given to a single mind... is to disregard everything that is important and significant in the real world." Because knowledge is dispersed, power must be as well.

Some economists became obsessed with market efficiency and others with market failure. Generally held to be members of opposite schools-freshwater and saltwater, Chicago and Cambridge, liberal and conservative, Austrian and Keynesian-both sides share an essential economic vision. They see their discipline as successful insofar as it eliminates surprise-insofar, that is, as the inexorable workings of the machine override the initiatives of the human actors.

Entropy is Janus-faced. Its upside surprises are redemptive and favorable to freedom. It is freedom of choice. But the carrier itself requires constant vigilance against entropic noise. Order is not spontaneous, but it is a necessary condition for all the surprises of freedom and opportunity.

A design isn't finished until somebody is using it. Brenda Laurel Intelligent design itself does not have any content.