What is al Qaeda? It's an open source religious political movement that works off the global supply chain.

Every golf course should have its carbon rating on the scorecard, alongside its Course Rating, Slope, par and yardage.

I was in Bangalore, India, the Silicon Valley of India, when I realized that the world was flat.

So what am I? I guess I would call myself a sober optimist...If you are not sober about the scale of the challenge, then you are not paying attention. But if you are not an optimist, you have no chance of generating the kind of mass movement needed to achieve the needed scale.

Two things are going on at the same time with the flattening of the world: The relentless quest for efficiency is squeezing some of the fat out of life.

We have to fight the terrorists as if there were no rules and preserve our open society as if there were no terrorists.

If you are self-motivated, wow, this world is tailored for you. The boundaries are all gone. But if you're not self-motivated, this world will be a challenge because the walls, ceilings and floors that protected people are also disappearing. That is what I mean when I say "it is a 401(k) world." Government will do less for you. Companies will do less for you. Unions can do less for you. There will be fewer limits, but also fewer guarantees. Your specific contribution will define your specific benefits much more. Just showing up will not cut it.