Kokichi Sugihara wins the Best Illusion of the Year (again) with an orthogonal polyhedron! Or maybe a different orthogonal polyhedron. Or maybe a third one. Or maybe it's not actually orthogonal at all...
https://www.youtube.com/watch?v=iA5zBZB2dng (via https://www.metafilter.com/177169/Accurate-perception-is-optional)
A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.
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