[abecedarius]

That's interesting. A quick search didn't turn up any math in the first few hits, but https://mises.org/library/cryptocurrencies-and-wider-regress... discusses this application to bitcoin somewhat skeptically.

Without more detail, https://wiki.mises.org/wiki/Regression_theorem seems to be saying that non-money uses of a currency set a floor on its value. If there are no such uses, the floor is zero. If there used to be such use-value, the past floor can bootstrap an equilibrium with a nonzero value in the present. Is there more to this theorem?