There are twelve black dots at the intersections in this image. Your brain won’t let you see them all at once.

http://i.imgur.com/5SvKMOS.jpg

That was what wrote games developer Will Kerslake on his twitter account and has been retweeted more than 25K.

One of the most funniest replies to this tweet was: "My wife can see all 12 just fine. Is she a witch? Please advise."

Points periodically appears two or three in different places. 

This is the new maddening optical illusion taking the Internet by storm, and this time the aggravating agents are disappearing black dots.

[The answer to this is here](http://www.theverge.com/2016/9/12/12885574/optical-illusion-12-black-dots) where it says the optical illusion was first posted to Facebook about a day ago by Japanese psychology professor Akiyoshi Kitaoka.

"In this optical illusion, the black dot in the center of your vision should always appear. But the black dots around it seem to appear and disappear. That’s because humans have pretty bad peripheral vision. If you focus on a word in the center of this line you’ll probably see it clearly. But if you try to read the words at either end without moving your eyes, they most likely look blurry. As a result, the brain has to make its best guess about what’s most likely to be going on in the fuzzy periphery — and fill in the mental image accordingly."

So please comment if you are able to see the twelve black dots at the intersections in this image? Well, at least all at once.