By Emma Street
Publication Date: 2026-02-22 22:45:00
In October 2025, there was a groundbreaking scientific breakthrough that might have passed you by. Google claimed its Willow quantum chip ran a task that would take today’s best classical supercomputers about 13,000 times longer to simulate. The speed boost wasn’t the most interesting part. We all know that quantum computers are fast.
The interesting part was Google’s other claim: The result is verifiable. One of the biggest concerns in quantum computing is if a quantum computer solves a problem that classical computers can’t, how do we know the answer is correct? Quantum Echoes, Google’s new algorithm, is designed to produce an output that you can repeat and expect to get the same answer again.
Google published a paper in…
