I would like to get a better knowledge about the inner workings of SmartAssets.
On the BitUSD Asset Page it is listed with a "Current supply" of 28,558,281.0318 bitUSD.
But on the bottom of the page in the "Margin Positions" tab, the sum of all Debt ( BitUSD) is 19,849,062.7291 bitUSD.
I always assumed that the "Current Supply" should be exactly equal to the sum of all margin positions. Isn't bitUSD completely borrowed into existence? But then where is the excess supply of 8,709,218.3027 bitUSD coming from? I am wondering, if everyone would want to cash out, there would not be enough collateral BTS left at some point. Please, could someone help me understand where the additional bitUSD is created, if not by borrowing. Thank you very much.