Earlier quoted context omitted.
It's not backed by mathematics any more than gold is backed by chemistry.
Uh, gold _is_ backed by chemistry. If gold were to change nearly any of its chemical properties, it would instantly lose its value. It is stable, generally non-reactive, non-toxic, lustrous, and of generally low abundance - all properties derived directly from its chemistry. That is actually one of the strongest arguments, to my mind, for why some variant of a cryptocurrency will survive as a store of value. Gold kin…
Bitcoin is also a Schelling point.