If you are a Taleb fan (or just curious), check out this critique of his work:
[0] http://quixoticfinance.com/tag/nassim-taleb/
[1] http://unpleasantfacts.com/falken-on-taleb
People who actually predicted the crisis
[2] http://www.amazon.com/Greatest-Trade-Ever-Behind-Scenes/dp/0...
[3] http://www.amazon.com/The-Big-Short-Doomsday-Machine/dp/0393...
Same here - if you read the piece (http://quixoticfinance.com/tag/nassim-taleb/) it exlains in detail how Taleb's claim to predicting the crisis is 100% off the mark (and the said thing is that he knows it, which makes him a poseur).
If you used a havy-tailed distribution (e.g. something from the stable family, which was suggested by Mandelbrot (1963) and Fama (1965)) and/or allowed for time-variability of moments and/or accounted for systemic risk you would see different prices of assets that better reflect that downside risk.