I think fundamental is the wrong word. Dollars have a fundamental value. There only purpose is to transfer debts. You can argue that if the government(s) fell t

I think fundamental is the wrong word. Dollars have a fundamental value. There only purpose is to transfer debts. You can argue that if the government(s) fell that the value is diminished or reduced to zero, but that doesn't remove that fact that it has fundamental value. I think that the same argument could be held for digital currencies, they were created for a similar purpose and then would also have fundamental value. The value that digital currencies has is far more tenuous than fiat currencies or gold. But don't get me started on the value of gold. Gold has the same issues as fiat, it's just more likely to be stable after the complete breakdown of society.