No one actually knows about it , only crypto whales are the one who can dump it any time , if they want to pump they will till the end of 2021 , if they want to dump they can dump it anytime.
Whales usually dump after the pump, the rest of the market movement is a residual attempt to profit by smaller fishes. Whales would never be the ones who initiate a pump themselves. They manipulate the market to meet their demands. Like Musk trying to raise the DOGE and BTC prices like anything is an example of mainstream manipulation.
Most investors are waiting for the market to turn around and they will have the opportunity to buy coins at a lower price. And most of these investors sold their BTC too early, because they did not believe in such a growth of bitcoin and now they have to wait for this bull run to end.
Many newbies are also getting FOMOed in. This is bad and I expect a lot of "I bought bitcoin at high price" - type of statements coming to this forum after a couple of months.
Because what has gone up has to come down but newbies fail to sell before it drops.