2026-10-15 (~2:45 PM ET, Pichai post relayed by Demis Hassabis — x.com/demishassabis): team claims first magic-state cultivation on physical hardware, a 40x error reduction versus previous methods and 99.99% logical fidelity on the Willow processor, published in Science the same day. Company-announced via social; the Science paper is the verifiable anchor. Watch: independent reading of the published fidelity numbers, and whether a utility timeline is ever stated.