The model used by Wall Street to price trillions of dollar's worth of derivatives thought of the financial world as an orderly, continuous process. B… - Michael Lewis

The world clings to its old mental picture of the stock market because it’s comforting; because it’s so hard to draw a picture of what has replaced it; and because the few people able to draw it for you have no interest in doing so.

You will be stupid. You will worry your parents. You will question your own choices, your relationships, your jobs, your friends, where you live, what you studied in college, that you were in college at all. If that happens, you're doing it right.

Someone out there was using the fact that stock market orders arrived at different times at different exchanges to front-run orders from one market to another.