Best optical illusion ever?

Best optical illusion ever?:

 

Wrote Kathryn Schulz, "Maybe the best optical illusion I've ever seen; definitely the one most likely to make you queasy."

I won't argue.

Note that it's not an animated GIF; whatever appears to be happening on the screen is, in fact, happening inside your head.

Gives pause for thought about whether there is, in fact, a world outside the one each of us creates for ourselves.

[via @bengoldacre]

 

(Via bookofjoe)