Comment by Ukv

> > There is no bright line [...]

> Except for, you know, being able to spend it where you buy things? [...]

The extent to which you can use it to buy things is a good metric, but I think that comes in varying degrees rather than being a sharp line or binary true/false. There are at least some things you can buy with cryptocurrency, and arguably there are some forms of "regular" (fiat, national, government-issued) money that aren't very widely accepted.