“It is cities that compete, not countries.

“Negative stereotypes about aging can actually shorten your life. Research has found that memory studies can intimidate elderly subjects into performing poorly. They score higher on memory tests if they aren’t explicitly told that the study is about memory and aging. They score worse on memory tests after reading a pessimistic newspaper account about aging and memory than those who read a cheerful article about growing older.

Another factor: Social support makes both men and women less vulnerable to health problems. People over 60 who described themselves as lonely were particularly at risk.

“Enterprise 2.0, when seen through the hypnotizing screen of the BlackBerry, does not amount to the liberation of corporate systems by personal systems but rather the colonization of personal systems by corporate systems. Society becomes a social network. My pocket vibrates, therefore I am.

“A species is defined as a set of individuals who can breed only with each other. The restriction on breeding doesn’t have to be genetic, it can be based on compatibility of belief system, or on connection within a social network. As our population grows and technology causes greater and greater variation, mankind is starting to speciate.

“Increasing variation in productivity is a good thing. In a low-tech society you don’t see much variation in productivity. If you have a tribe of nomads collecting sticks for a fire, how much more productive is the best stick gatherer going to be than the worst? A factor of two? Whereas when you hand people a complex tool like a computer, the variation in what they can do with it is enormous.

If your society has no variation in productivity, it’s probably not because everyone is Thomas Edison. It’s probably because you have no Thomas Edisons.

“If you believe that a business will magically become more efficient as it grows, just walk into the headquarters of Amazon or eBay.

“Ranking search results using Pagerank requires a time lag. Until recently Google preferred pages old enough to attract others to link to them.

To identify fresh information, analyze the attention streams of people when they consume it.

“We need to be careful about issues that become superstition: “we talked about that once and it didn’t work so that topic is done,” “maybe that would be better but it’s too much trouble” or (my favorite) “that couldn’t possibly be efficient enough to be justified.

“My reality is that it is basically not possible to make a living in the Long Tail. The long-tail theory is a basic and profound truth that I happily embrace as a consumer. But as a producer and creator of Long Tail content it basically spells out my doom. I have the same issues and problems my predecessors did. I need to find multiple large national distributors if I hope to even come close to making a living at this game. And I need to produce fresh content on a reasonably frequent basis.

“A la carte pricing focuses your consumer. It forces them to make a choice in a spot where they didn’t use to make a choice. It can highlight features that might have gone unnoticed.