No fiat involved. This is all after hyperbitcoinization.
Discussion
I don’t personally agree with the premise of hyperbitcoinization, because I don’t think it’s necessary. I expect a world where people save long term in Bitcoin, medium term in the best stablecoin denomination (dollars, at present), and spend and borrow short term in local fiat.
Happily, local fiats will be far harder than at present, because Bitcoin brings such rigor and competition to fiat currencies. My .02.
That may be, but adding different currencies into the mix negates the premise that the loan will be in Bitcoin and that such loans will be (or not be) attractive. Which is the discussion.
As soon as you have an inflationary or even stable currency to get credit it, everyone will use that and take the loan.
Regardless, I have confidence that the Wizards of Wall Street will figure out how to leverage it and loan it.