It's fake. It changes directions randomly.
that's the power of belief. for a while i thot people were just fooling themselves into seeing her change directions.
then, when i saw it myself, i was sure that the picture itself must contain a random callout to switch directions. but, as FDD said, it's not fake. she is no more 'inclined' to spin in one direction than the other - the direction she is currently spinning is just what your brain has chosen, at this moment, to see.
blink your eyes quickly, but randomly, this will allow you to 're-interpret' the image, very shortly - she will switch directions for you. even knowing it can happen ... my mind feels like it is locked against allowing it to do so. the last time i did it took 60 seconds... you start to doubt it's even possible because of how hard it is to Not believe what you Believe you are seeing.
If ur still having a hell of a time ... just use your mouse wheel to quickly move the picture up and down (out of sight then back into sight) ... within a dozen times or so you will scroll up and see that she has magically changed directions. Take That, Mr. Brain !!
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