Sadly, in the highest levels of economic thought in government, questions are not tolerated. It is as if we're dealing with the binary thinking of a fundamentalist religion.

In early 2005, I really studied the prospectuses of these mortgage pools that were tranched out into different-rated slices rated by agencies like S&P and Moody's. They had names like Park Place and People's Choice. It was clear to me that many of the buyers of these repackaged subprime mortgages were doing little analysis.

In June 2005, mortgage rates were at 40-year lows, and risk premiums on mortgage securities were at all-time lows. Once the banks migrated to the subprime area, there was little else that could be done to send housing prices higher.

I think a lot of hedge funds get their trades from Wall Street and get their ideas from Wall Street. And I just like to find my own ideas. I'm reading a lot; I read a lot of news. I'm addicted to it. I basically - I follow my nose on news stories.

Back in 2005 and 2006, I argued as forcefully as I could, in letters to clients of my investment firm, 'Scion Capital', that the mortgage market would melt down in the second half of 2007, causing substantial damage to the economy.

I seek individual investments that will allow me to target total portfolio returns of at least 20% annually after fees and expenses on an annual basis over a period of years, not months.

It is a tenet of my investment style that, on the subject of common stock investment, maximizing the upside means first and foremost minimizing the downside. The deleterious effect of permanent capital loss on portfolio returns cannot be overstated.

Common hedging techniques include shorting stocks, buying put options, writing call options, and various types of leverage and paired transactions. While I do reserve the right to use these tools if and when appropriate, my firm opinion is that the best hedge is buying an appropriately safe and cheap stock.

Throughout the universe of public and private funds, managers are measured quarterly against one index or another, defined by statistics, and corralled into this category or that category so that fund of funds, pensions, and other institutions can make comforting - if not necessarily prudent - asset allocation decisions.

Innovation, especially in America, is continuing at a breakneck pace, even in areas facing substantial political or regulatory headwinds. The advances in health care in particular are breathtaking - so many selfless souls are working to advance science, and this is heartening.