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Tricks-of-the-eye images and optical illusions have saturated the internet as people attempt to learn about themselves through the way they perceive certain images.
There is the famous 20th century illustration by British cartoonist W E Hill which depicts an old woman and a young woman simultaneously in one image:
The image has become a popular tool for psychologists to determine perception bias, and prompted a number of versions and interpretations to the original.
The most recently popular manifestion of the idea of optical illusion and perception bias seems to be the following image:
According to internet rumour, the image you see first determines how sexually (or playfully) you tend to approach the world...
More:How smutty is your brain? This optical illusion will tell youMore:Disappearing dots and seven other optical illusions freaking out the internet