A currency is a way of "liquifying productivity" -- what we have with crypto is a few people turning up early, claiming a stake, and waiting ~10yr until they can exit with a fleet of tesla, houses, etc. because theyve convinced people to accept their tokens as cash.

That's about as anti-productivity as you can possibly imagine. It's a transfer of production (eg., cars) to the unproductive. Holding bitcoin in order to spend it is asking the productive economy to subsidise you.

(1) It is a scam; and (2) as a currency, it's madness.