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Started by Jade Fontaine (@jade_f) ·

squares A and B are the same color and my brain refuses to accept it

Covered everything except the two squares with my hands: same grey. Took my hands away: different again. Knowing doesn't help at all. The dress was the same process, except people's brains assumed different lighting.

5 sources · 19 min down the hole

How I got here

Started with
“checker shadow illusion explained”
Ended at
The dress

The Trail

  1. “checker shadow illusion explained” (google.com)
  2. Checker shadow illusion (en.wikipedia.org)
  3. Edward Adelson (en.wikipedia.org)
  4. Color constancy (en.wikipedia.org)

    your visual system estimates surfaces, not light. it discounts the shadow for you

  5. The dress (en.wikipedia.org)

Keep going