Meanwhile Bitcoin has been the only asset among top 44 assets which didn't fall. Even Buffet's BH is down even though he was spot on with his huge cash positioning lately.
It could be this flash-crash coincided with some big entities buying Bitcoin (GameStop, Strategy, someone else) and this is contributing to BTC strength. 

Benjamin Cohen: "Usually when stocks fall and Bitcoin doesn’t, everyone starts noticing how well Bitcoin is doing and people start talking about it.

Then shortly after, Bitcoin falls too"

We will find out soon.