The dropping of the bitcoin price is maybe because some people or holder are selling thier bitcoin and maybe they invest in other coin, stable coin or altcoin, many of us wanted to see bitcoin price to drop until 50k$ but i think it will never go back to 50k$ again, maybe in the next few weeks it will rise up high and reach up to 70k$.
I only think about people selling their bitcoin and take profit, nothing else.
But that moment makes people panic and they think that some people dump their bitcoin and push the price to go down below $60k.
And the fact is the price really drops too deep and the price now reaches $55k after yesterday, the price is at $54k.
I am sure this situation will be back and the price will have another moment to start the rally and if you can buy bitcoin in this deep, you will make a profit later.
So buying now or not, that will depend on yourself.
And for the altcoin, the price will always follow where the bitcoin price moves, and if the bitcoin price is down, many altcoin prices follow to go down.