Twitter is going insane over this optical illusion.
A photo on Reddit, posted by MK24Ever, of a young girl who looks like she's stuck waist deep in the cement of a sidewalk is tripping everyone out. The caption said, "My daughter, where’s the rest of her?"
Twitter user Tim Kierzmann reposted the picture on Twitter, which caused a storm of confusion for his followers. It's now gone viral with thousands of retweets and likes.
Take a look below. It's going to take you a second to realize what exactly is going on, just focus really hard on the girl's one bent arm.