The 2008-era crisis in theory should have resulted in a whole heap of financial managers taking their companies bankrupt/to a place of horrid returns and being blacklisted from ever managing a lemonade stand. But they were bailed out, so now they got promotions instead for record returns or whatever it is they've been doing since. Since the finance industry has substantial control over what everyone else does, that leaks out into the real world.
So, the intuition is that the system is being corrupted and people with no ability to make good decisions are being put in charge. At some point that should boil over. You can fit math models to that and guess which metric will blow out first.
I'm not sure how much I buy that argument; people have an incredible ability to put up with suboptimal circumstances. But when you put idiots in charge there is always a risk that they do something spectacularly stupid so my personal guess is at some point the pensions crack and trigger something. It is a spectator sport in a way. Maybe America is productive enough that they can cope with a few bad eggs in the financial markets. Maybe the taxpayers can shoulder all burdens!
POSTSCRIPT
Just for fun, veering off topic.
https://en.wikipedia.org/wiki/List_of_bank_mergers_in_the_Un...
My interpretation is that something went wrong with bank regulation in the late 70s or early 80s. That is when the too-big-to-fail snowball started rolling; since then the stresses in the system seem to have been building. 2008 was a nasty blow.