I mean, banks are allowed to curtail the egress of funds through rules limiting the velocity of funds. I see this in some of the recent high-interest yield off

I mean, banks are allowed to curtail the egress of funds through rules limiting the velocity of funds. I see this in some of the recent high-interest yield offerings. Of course, then the super-rich and their millions might stay away. But perhaps that's the most stable course after you have too many "over the FDIC limit" account balances.