check out this whoever:

www.news.com.au/heraldsun/...661,00.html

I have verified by downloading and breaking apart the gif frames that this image IS legit (as far as I can tell.. there are no hidden loop reverse properties on the image or anything..)

when I first saw it I would have sworn it was a fraud.. there's just no way it could spin that other way..

but then, voila! i looked at the shadow and the next thing I knew it flipped..

if you break it into frames you can see on frames 13/14 and 26 27 that the image could go either way... it's apparently a matter of mental momentum where the whole thing turns inside out on itself...

but better yet.. try THIS!

it's yogically called brain twirling...

feel a sphere within your brain (just a sensation of motion) spinning in either direction inside your head...

either with her motion or against it, and, i think, voila, you have found your left brain right brain spin switch..

let me know if it works!