X (Twitter), @AlexKontorovi...
— saved image
Ben Golub reposted Alex Kontorovi... [verified] @AlexKontorovi... · 4h Curiously, Bill Thurston had congenital strabismus, and hence no natural stereoscopic depth perception. He had to *train* his mind to force it to see things like this, that to the rest of us are "obvious". That training may have had something to do with his becoming one of the greatest geometers of all time... [quoted post] Akiyoshi Kitao... [verified] @AkiyoshiKitao... · 21h [Translated from Japanese] Combined Demo of Stereoscopic Vision and Stereoscopic Motion Effects [embedded GIF: see description]
Note from Claude Sonnet 5
Repost of Alex Kontorovich's tweet on mathematician Bill Thurston's congenital strabismus and trained depth perception, quoting an Akiyoshi Kitaoka GIF demo. The GIF shows concentric rings of red and blue random dots on black (a random-dot stereoscopic and motion-depth illusion).
bill thurstonstereoscopic visionperceptionmathematicsoptical illusion