Moving square illusion GIF

It’s oddly satisfying to move your finger along with it

Huh, for some reason, I really can't see the squares move.

I dont get it

@la @pythonis The 'illusion' is that the sticks look like they're a square moving in a uniform circle, however removing the yellow squares show that it's just 4 independent sticks moving up and down at the right time. The yellow squares aren't supposed to move.