Your Eye Can See a Single Photon #Shorts

Added: 2026-05-07

[00:00:00]Your eye can detect a single photon, the smallest unit of light in the universe.

[00:00:04]In 2016, a team led by Alipasha Vaziri [music] at Rockefeller University proved this experimentally.

[00:00:12]Volunteers in a dark room reported seeing flashes when individual photons hit their retinas above chance levels. Statistically significant, your visual system operates at the absolute physical limit of what is detectable in this universe. There is no smaller unit of light to see. You are already looking at the edge of reality.