Tuesday, February 10, 2026

Optical illusion.

When I do jumping jacks in my living room and the ceiling lamp is on, the textured ceiling seems to abnormally bubble out towards me and then retract from me with each hop if I glance up at it mid-jumping jack, almost like I’m on LSD or something.

I think it’s because it has that grain-speckled 3D texture that casts shadows away from the light, and it’s something about how you get closer to the grains and their shadow shifts subtly on your approach simultaneously, with each hop… It’s just too much for your eyes and brain to process all at once, and so you perceive it as some type of psychedelic ballooning.

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