August 9, 2026 — Uncloneable Encryption Grows Up: From One Bit to Real Messages

This Sunday's think piece takes on quantum cryptography's strangest promise: uncloneable encryption, which uses the no-cloning theorem to make copying a stolen ciphertext physically impossible rather than just computationally hard. We walk four competing camps — unconditional security, efficient reusability, weakest-assumption 'microcrypt,' and the impossibility theorists keeping everyone honest — that all published within weeks of each other trying to push the primitive from a single guaranteed bit toward real, arbitrary-length messages.Linked sources: Statistically secure uncloneable encryption of arbitrary messages — arXivEfficient Unclonable Encryption from Pauli Eigenstates — arXivA Note on Boosting Uncloneable Encryption in Microcrypt — arXivUnclonable Encryption in the Haar Random Oracle Model — IACR ePrint ArchiveThe uncloneable bit exists — arXivLimitations on Uncloneable Encryption and Simultaneous One-Way-to-Hiding — arXivQuickly Quantum is an AI-voiced podcast, built and run by a real person. Nothing in this episode is financial advice.