> a reasonably good explanation of why, at least in my opinion, crypto is still completely non-viable as a real medium of exchange). The key is that there is a process for reconciliation. It IS NOT ENOUGH to simply have a ledger - you also need a mechanism for enforcing that the ledger matches reality. And reality is complicated, filled with reasonable disputes over terms and deals (in the best case) and outright fraud and theft (in the worst case).

You do realize crypto can be wrapped up in a settlement layer, right?

Cash has the same problems until you introduce a settlement system.