It is becoming increasingly clear that the entire world's financial system is corrupt from the inside out, and untrustworthy. Naively, I would predict some kind of "run on financial-system-X."
But, to have a "run," there has to be some place where people want to move their value. Which raises a fascinating problem: If people look around and see that every possible option is crooked and untrustworthy, where do they move their net worth?
You could possibly argue that the ultimate-hedge-of-last-resort is "buy metal and stash it under your mattress," (*) but if you're talking about millions of dollars, that starts to not seem very attractive either, since a single burglar could wipe you out.
I don't know. Property? Art? Where is it going to go? I realize that some percentage is truly going to just evaporate, since it was never anything but virtual.
(*) or if you want to go full-zombie-apocalypse, I suppose "buy food/ammo and stash it under your mattress"