Tuesday, Aug 18, 2020, 5:02 pm

By:Tony Williams

#9 Cognition

If you get a two-dimensional image that moves back and forth, then some people will see it spinning clockwise, but then it will start to spin anti-clockwise for no apparent reason. You can see how this will freak you out a bit, so do look at examples and see what happens for you as it does not work for everybody.