There are 16 circles in this image

Image from i.redditmedia.com and submitted by agentrhino
image showing There are 16 circles in this image

Inh3rentV1ce on November 8th, 2017 at 02:03 UTC »

If you're having trouble, all the vertical lines are inside the circles.

RamessesTheOK on November 8th, 2017 at 03:03 UTC »

for the people who can't see it, i have made a very crude diagram on paint

Cer0_Grav on November 8th, 2017 at 04:00 UTC »

My perception of them is flipping back and forth, like a strobe. First no circles, then circles, and back again.

Anyone else getting that?