Oh, come on. This is
three days after their favorite bank got shut down. We all know what the proximate cause is.
I think it's clear that the venture world (at least the top of it) had turned itself into an industry on its own. They didn't make money on startup exits anymore, they made it on services. They'd fund startups, get those startups into later rounds by milking less sophisicated VCs[1], push them at their favorite bank, collect fees at each stage, and then take the profits and roll them up into more startus.
Now that the favorite bank is dead, this gravy train is over immediately. And the smart VCs at the top of the heap are the ones to exit the wagon first.
Honestly, the industry has had a toxic feel for a while. But the last 72 hours have made it clear that there was just no soul left.
[1] Yes, this sounds like a pyramid scheme to me too.