OK i've got a new idea.
If we want to increase the supply of BitUSD and BitCNY we need to encourage people to borrow it in to existence and spend it.
The best way to encourage people to borrow MPAs into existence and spend them would be a financial incentive.
AKA Negative interest rates.
So the opposite of HERO which increases by 5% a year. We create an MPA that loses 5% each year.
This is what many central banks have been talking about doing for a while but can't because physical cash inhibits it.
Why would someone want to hold an asset that loses 5% a year? They won't want to hold it for long but they will like it because theres a lot of it available. Not wanting to hold an asset that has a large supply will create good liquidity.
Why would there be a lot available? Because anyone who borrowed and spent it would have a margin position that would get smaller every year.
Still thinking this idea through in my head, but theres potential here I'm sure.