It's mind-blowing how many people are confidently wrong about this in the comments.
It takes 2 seconds it takes to get the answer from any AI.
I feel compelled to remind you :
If you buy one Bitcoin at $126,000
And it goes to $89,000
You can sell it
And buy it back 6 seconds later
You still have the same one Bitcoin
But you can realize a capital loss of $37,000 for tax purposes