Mitchell Zuckoff

I know that plenty of folks have issues with Social Security, but I'd urge them to confront it on its own terms. Calling it a Ponzi scheme is misleading and does more to cloud the issue than it does to illuminate it. And yes, I do know that unless changes are made, the current system is unsustainable. But that doesn't mean it's fraud.

I was researching a different World War II story when I came across an article in the 'Chicago Tribune' from June 1945 that knocked me for a loop. The article explained that a military plane had crashed in an impossibly remote valley of New Guinea that had been nicknamed Shangri-La.

When running a Ponzi scheme, how does one avoid enormous, unexpected withdrawals - runs on the bank, so to speak - that would pull back the curtain and reveal a little man blowing smoke? One way would be to attract a core of investors who could be counted on to never withdraw more than a small percentage of principal each year.

Though builders may build, in the main they follow the plans of architects. Teachers teach, but they must have a text. Politicians govern, but only upon the flow of commentary that raises them up or casts them down.

My venture investing career has three phases, all roughly 6-8 years long. The first, at Euclid, was software to Internet. The second, at Flatiron, was Internet to bubble. And the third, at USV, has been web 2 to mobile. I have always used a new firm to denote a new investment phase for me. Throw away the old. Start with the new.