The leap from “we are always liable to error” to “therefore Zcash” feels off. Error correction is a nice epistemic story, but money has a harder requirement, coercion resistance, and hiding balances on-chain does not give you that by itself. If anything, private transfers can make coercion easier in the cases that matter, because the other party can still be forced to reveal view keys, screen state, or just move funds under supervision. That is the part the essay seems to skate past while treating privacy as the main win.