Nanotech engineer Dr Michelle Dickinson has posted a picture, resembling just black and white stripes, suggesting that there’s something more to these lines. To comprehend it, she says, one simply needs to shake his or her head.
The post has already gained several hundred comments and re-tweets. Those whom she got on board revealed below the pic that it was nothing more than a cat. The temptation to solve the mystery themselves was too great for the fear of public embarrassment to stop them.
However, some commentators suggested an easier way of finding out what the optical illusion hides without appearing foolish.
Others suggested they didn’t even need the shaking bit.
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Still others wanted to take it further than just headshaking.