Within about 5 years, quantum computing will achieve a genuinely useful practical computation that is far superior to what classical computers can do.
“I think to me quantum feels like where AI was around you know 2015. So I would say in a 5-year time frame you would have that moment where some a really useful practical computation you know is done in a quantum way far superior to classical computers and that'll be that aha moment.” View on YouTube
Well ahead of the 5-year window, Google's Quantum Echoes algorithm (2025-2026) demonstrated verifiable quantum advantage running 13,000x faster than classical supercomputers on a real molecular-structure-measurement task, and IonQ/Ansys reported a 36-qubit medical device simulation outperforming classical HPC by 12%, both genuinely useful practical computations superior to classical methods.