Pump and crash is common in bitcoin, the first time I knew about bitcoin was in 2014 when the price dropped significantly from over $ 1000 to below $ 200 and many experts on tv predicted that bitcoin would soon perish, especially when the Chinese government continued to tighten restrictions bitcoin because bitcoin users and miners at that time were china.
Pump and crash have become a normal cycle. $1000 down to $200 is nothing compared to the highest ATH time at the end of 2017 which reached $19k and then crashed to $3k at the end of 2018.
This is also because a lot of FUD has sprung up to corner Bitcoin, especially the Chinese government which banned Bitcoin completely.
But we can see it now when prices continue to be pressured to go down and FUD is widely spread, Bitcoin continues to print new ATH again.
As of this moment, the price of Bitcoin fell more than 70% from the last ATH and this indicates that there will be another increase and Bitcoin can reach a new ATH when the halving moment occurs.
The crash moment means Bitcoin will reach its peak again, becoming the best opportunity to continue to accumulate Bitcoin at this time and hold it until the new ATH is reached.