The Market's Oversold Rally

In 2000, there was that rally that we had and that started with what May 30th or May 31st follow through day in 2000. The market was incredibly oversold and it got a reason to rally. And so it just unleashed a huge amount of buying. Now let's go back. I mean, if you show the intraday chart, there was nothing happening before 11 o'clock Pacific time, everything happened. What do you think excited the market so much?