Earlier quoted context omitted.
I agree, but unfortunately I don't believe a society being run by humans would ever implement that. The leaders will not tolerate that kind of loss of control.
It has already been implemented (Bitcoin, Monero etc), and is improving gradually. The control freaks who would not like to tolerate it think they'll be able to tame it, but Bitcoin is like the Hydra - it gets stronger with every unsuccessful attack attempt. It's better for them to bury their heads in the sand and pretend it doesn't exist in order to not bring attention to it. When they eventually lift their heads ou…
But what if untraceable transactions were limited to small amounts and slow rates, such that you could personally provide for your family but not run an enterprise? (basically that's what physical cash attempts, and as long as the denominations are kept low, it sort of works)