'Broken Strategy': The Fall of Legendary Investor Bill Miller

Victor Niederhoffer was once asked: "What makes trading so hard?" He replied: "That's simple. It's because the stock market is always changing."

The implication is that if the market stayed the same, once we figured out a profitable strategy, we could program a computer and go on vacation for the following 30 years. But the market doesn't stay the same. It constantly changes, and if you don't change with it, you'll die.

Here's a quick video from tech ticker about the fall of a modern Wall Street legend.