[halestock]

Haha well, no slapping necessary. I like to think I'm right but would love to be proven wrong.

It's important to distinguish between fungibility and tracibility because fungibility is an extremely important property for a currency to have, and without it it's all but useless.

Theoretically, if the US were to go to an all digital dollar, we would functionally have a blockchain (assuming all these transactions were reported centrally somewhere). This would not have changed the fungibility of the dollar, because the dollars you get in your paycheck are still the same as the dollars you get back as change or the dollars someone Venmos you for cocaine. Once they're in your bank account, there's no way to separate out which dollars came from which source. Now, you could pay someone to give you money with a "clean" history, but you're not paying more money for those dollars, you're paying someone for the service of giving you dollars with a clean history.