Off topic, but anybody trusts his eyes that much, try this.
https://www.youtube.com/watch?v=9CEr2GfGilw
What do you see ?
Did she turn clock-wise ?
Did she turn counter clock-wise ?
Did she switch direction ?
What if I tell you all the answers can be YES.
And this one is for fun, Optical Illusions
https://www.youtube.com/watch?v=RC1fd0Nqh34
https://www.youtube.com/watch?v=9CEr2GfGilw
What do you see ?
Did she turn clock-wise ?
Did she turn counter clock-wise ?
Did she switch direction ?
What if I tell you all the answers can be YES.

And this one is for fun, Optical Illusions
https://www.youtube.com/watch?v=RC1fd0Nqh34