[TrianguloY]

In "the double ring illusion" I'm unable to see them as 180° rotations. I see all rings in the video doing constant 360° rotations, and I don't care if they intersect.

Maybe I'm too used to see virtual 3D animations where objects can intersect and do whatever they want without any physics involved.

[IshKebab]

Yeah, same. Maybe we've learned too much to expect stuff to go through other stuff from 3D graphics, but that seems a bit dubious. It's probably just not as reliable as the authors say.

[jccalhoun]

I'm the opposite. I see the rings spinning back and forth in all the examples.