All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Wednesday 23 October 2019 1
2019Google claims quantum supremacyQuantum computer solves problem in 200 secondsGoogle announced that its Sycamore quantum processor had achieved quantum supremacy on October 23, 2019, performing a specific calculation in 200 seconds that would take a classical supercomputer 10,000 years.