First
The Fed and Congress has pumped almost $8 trillion into this market. So corporations and individuals are flushed with cash.
Second
Almost 40% of the rally has come from tech stocks
Third
The two year urge to spend caused a surge in retail sales which will fall off a cliff after the holidays.
Fourth
The Fed will begin tightening all of 2022 that will cause tight money and interest rates to rise.
Fifth
Energy prices will rise better than 29% putting more pressure on inflation that will affect everything in the global economy.
Finally we are going into an election year that will create a lot of uncertainty that should cause the economy to slow.
I would pull most of my equity out of the market out I see at least a 15% decline.
But what do I know. These guys on this board are smarter than me.