Victoria Stuart 🇨🇦 🏳️⚧️Akiyoshi's illusion pages
https://www.ritsumei.ac.jp/~akitaoka/index-e.html
Discussion: https://news.ycombinator.com/item?id=37522106
Optical illusion: https://en.wikipedia.org/wiki/Optical_illusion
* aka visual illusion
* illusion caused by visual system
* characterized by a visual percept that arguably appears to differ f. reality
