The picture has grey lines drawn on a white background and 12 dots put on the equidistant intersections. “There are twelve black dots at the intersections in this image. Your brain won’t let you see them all at once,” Kerslake writes. Because it’s Ninio’s Extinction Illusion which doesn’t allow the brain to process the image as quickly as you see it. Your brain won’t let you see them all at once.

Source: Indian Express September 18, 2016 12:45 UTC