I give 1 upvote to all correct comments. Upvote this post and comment.
A somewhat dizzy image, which looks like a bar code, but has become viral in a few days. Within this amalgam of gray, black and white lines and rectangles, there are also circles thanks to an optical illusion.
https://www.facebook.com/honestconman/photos/a.198773453513274.49267.183500741707212/1539768166080456/?type=3