You really do have to wonder whether a few years from now we'll look back at the first decade of the 21st century when food prices spiked, energy prices soared, world population surged, tornados plowed through cities, floods and droughts set records, populations were displaced and governments were threatened by the confluence of it all and ask ourselves: What were we thinking? How did we not panic when the evidence was so obvious that we'd crossed some growth/climate/natural resource/population redlines all at once?

If you followed this economic crisis and you do not think that the world is getting flatter, you are not paying attention. We saw the entire global economy at one time acting totally in sync. The real truth is the world is even flatter than I thought. Our mortgage crisis is killing Deutsche Bank. You still don't think the world is flat?

We've given Iraq six months and I don't think things are really working out, so we should probably bring our troops home.

A 2011 report produced by Forrester Research estimated that the revenue generated through the sales of smartphone and tablet applications will reach $38 billion annually by 2015. Think about that: An industry that did not exist in 2006 will be generating $38 billion in revenues within a decade. . . .

We've gone from thinking the fuels that powered our growth were inexpensive, inexhaustible and benign to understanding they are exhaustible, expensive and toxic. Once you frame the problem that way, people will look at solutions differently.

We're going in the wrong direction and I think the only way to counter that is to bring the story home in really concrete ways to people - in ways that kids can understand and non-scientists can understand.

I think we have lost our groove as a country. One of the reasons was the attack on 9/11. We got knocked off our game. From a country that always exported hope we went into the business of exporting fear.

When widely followed public figures feel free to say anything, without any fact-checking, it becomes impossible for a democracy to think intelligently about big issues.

I love America. I think it's the best country in the world. But I also think we're not tending to our sauce.