Five reasons to give thanks for the financial collapse of the decade.

The assets include subprime mortgage-backed bonds and no doubt many other things that aren't worth as much as Lehman hoped they might be worth. But it's the liabilities that are most intriguing, as they include more than $700 billion in notional derivatives contracts. Some of that is insurance sold by Lehman, against the risk of other companies defaulting.

The entire pile might be benign, but somehow I doubt it. We may well find out that Lehman Brothers, in liquidation, has a negative value of hundreds of billions of dollars. In that case the natural question will be: How much better could things be inside Morgan Stanley and Goldman Sachs, both of which were engaged in the same lines of business?

2) We are creating the financial leaders of tomorrow.

Remember when everyone believed in Alan Greenspan? When John McCain, running for president in 2000, said that if Greenspan died he'd have him stuffed and propped up against the wall at the Federal Reserve, where he'd remain chairman?

No sooner did Greenspan shuffle off the stage and sell his memoir than the financial system he helped shape fell apart.

He's left not only a mess but a void. No matter how well- educated we become in our financial affairs, we still need public officials to look up to, unthinkingly.