There's a new optical illusion on the block, and it's a good one. Take a look at the image above. Take as much time as you want. It looks as though there's one, maybe two dots at the intersections ...

Lilac Chaser Also known as the Pac-Man illusion, this image loop shows twelve lilac dots against a gray background, with a black cross in the middle. One dot then disappears and reappears in a ...