pull down to refresh

Heres a conversation I eventually want to post about...
How is it possible that everyone wants to invest in a 401k, Roth, IRA, etc etc and dump it all into index funds and its just suppose to go up forever?
I think its only a matter of time before big corps and hedge funds mass dump, tank the market, cause retail to panic and then rebuy everything up.
The system can't be supported with passive index funds forever. Something has to eventually break. The PE ratios along with every other metric make no sense whatsoever.
this territory is moderated