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The original was posted on /r/todayilearned by /u/NothingIsHere5947 on 2024-03-28 04:22:37.

Original Title: TIL Ed Catmull, co-founder of Pixar and former president of Walt Disney Animation Studios, who revolutionised 3D graphics, and developed the industry-standard method for animating curved surfaces, has the rare condition Aphantasia, i.e. complete inability to visualise mental images.