" And in the late summer of 1998, the bond-trading crowd was extremely fearful, especially of risky credits. The professors hadn't modeled this. They had programmed the market for a cold predictability that it had never had; they had forgotten the predatory, acquisitive, and overwhelming protective instincts that govern real-life traders. They had forgotten the human factor. "

― Roger Lowenstein , When Genius Failed: The Rise and Fall of Long-Term Capital Management