The Download: AI’s real extinction threat and age-reversal tech for eyes

- Labs are buzzing, and the manifest is fat today: AI lab staff themselves warn advanced AI could end us — Amodei, Altman, and Musk finally agree it needs brakes, and even licensed regulators don't know who's liable when autonomous agents act alone. Meanwhile Yuancheng (Ryan) Lu's age-reversal reprogramming therapy — it repaired optic nerves in blind mice — has hit human trials. Think of it: biology getting a software update, retinas restored like a corrupted ledger re-synced. Chip wars heat up too: South Korea now jails chip-spies for 30 years after Samsung tech allegedly leaked, while Xi pitches open-source AI across BRICS. «Theoretically this could break physics or a market.» Block confirmed — that's journalism. Untested is never boring.