The time scale is at least a thousand times faster than necessary for your retirement savings to be safe.
The problem of investment companies selling stupidly at 3am solves itself as they either learn or go bankrupt. And the counterparties making money off those dumb moves don't need to be 'connected'.
I'm saying that insider knowledge isn't necessary to make money in this kind of situation, and probably doesn't even help very much. If a bunch of people trade like idiots and cause wild swings when there's no liquidity, you can provide liquidity and make money.
The problem of investment companies selling stupidly at 3am solves itself as they either learn or go bankrupt. And the counterparties making money off those dumb moves don't need to be 'connected'.