There are mountains of institutional cash patiently waiting for the present stock bubble to burst. At that point the shorts put on will drive prices lower than those holding stocks and mutual funds today can fathom.
Bill Fleckenstein says that stock valuations have risen to absurd levels on the back of low interest rates. But though he remains staunchly bearish on equities, he still believes that it’s not yet time to get short. Here is a direct video link.