With this logic, most of the bursts wouldnt happen, would they? In 2000 with the dotcom, why was it a bust and not a gradual decline? Same goes for 2007/8 bust.

With this logic, most of the bursts wouldnt happen, would they? In 2000 with the dotcom, why was it a bust and not a gradual decline? Same goes for 2007/8 bust. If it were not lagging, wouldnt you expect people would have realized this and bring market to its stable levels with similar shorting?