Okay.
That is just disturbing.
At first, all I could see was her going counter-clockwise. I started to figure it was a matter of where you see the imaginary clock. Then I read some of the comments and scrolled back up and I could actually see her change direction. When I stare, I see her change back and forth. I don't even understand how the illusion is working, unless the animation really is changing and this is actually some sort of psychological experiment. When I read
this article, she turns left as I read the left paragraph, and right as I read the right paragraph - that can't be the animation, because I change the timing. It's freaky. (thanks to
hermionesviolin for the link)
(You know what else is freaky? When the University sends you a "past due" notice on your tuition and fees, and you panic because it's a $100 late fee and you totally set up that payment online with your bank weeks ago, and you rush to check your account, and it actually was paid and you don't actually owe anything and thanks a lot, University.)