Even more so, it was pretty much common knowledge at the time. It was just that there was lots of money to be made, and people always want to believe they won't

Even more so, it was pretty much common knowledge at the time. It was just that there was lots of money to be made, and people always want to believe they won't be the ones to lose out in the pyramid scheme. Sure, the speed and the impact of the bubble bursting was a bit of a shock, but the bubble itself was pretty obvious.