Capitalism seems to "thrive" on instabilities. Libertarians just do not accept any damping measures. They hail GDP growth as the holy grail. As for crisises - well, they are swift but rare and short.

In particular, experienced stock traders are surely aware of Ponzi modes in one way or other. Taking benefit from that must be a usual buisiness for them. Predicting moods of new market players is even an easier task than estimating "intrinsic" value of companies. (This is akin to the job of bookmakers: they do not really predict sport events; they just have to predict moods of participating betters. If they force bets to be distributed evenly, bookmakers win their daily bread with any outcome of the sport event.)