Optical Illusion (MegaThread)

[RedGajin]

What are these supposed to do? People always show me these but I can never figure out whats supposed to happen.

[Ad Bot]

[Harm94]

4th one is a mind control/Hypnosis device, don't stare at it!

[Littledude]

hehe

thanks

No it's not; it works only if you stare peripherally at it. Look directly at a circle in the picture and it doesn't move.

well technically it is a gif, but it isn't animated anyway.

[Cubelands]

4th one is a mind control/Hypnosis device, don't stare at it!

correct.