In politics, there's a fine line between too much conviction and too little.

One intriguing subplot of the economic crisis is the failure of most economists to predict it. Here we have the most spectacular economic and financial crisis in decades - possibly since the Great Depression - and the one group that spends most of its waking hours analyzing the economy basically missed it.

At every stage since World War II, people have assumed that what's happening today will happen forever. Universally, that's been wrong. I can't say in which direction but I do think that what we expect today won't be what we'll get in 15 years.

When you become 70, you can't deny that you're on the downhill. But I keep doing what I've been doing. If I retired, what would I do? I'd brood about my kids and I'd play around with my investments, which would probably cost me.