Much like the dress (was it white and gold, or blue and black? You remember), and also Yanny or Laurel-gate of years gone by, another illusion is going viral online.
Watch this video with a friend and try to decide which way the person is swinging in this delightfully snowy scene.
It's OK ... we'll wait:
If you did watch it with a friend, like we asked, and both saw something different, it's possible that you're currently bickering about which of you is right, freezing frames (pun intended) to prove a point and squabbling over the position of the legs and the bars.
You only have to listen to the video to know you're not alone in the fact you have differing opinions.
"They're bent this way," one woman says. "Oh no, I am still a bit confused," replies another. While a confident man adds, "I'll bet you $500 cash right now".
The debate swings on over on Twitter
While the video originally appeared on TikTok, the debate rages across many social platforms, particularly Twitter (where people love to argue pithily).
There are plenty of people who think the person is facing towards the camera.
He's facing the camera. His legs bend back towards the building after being straight out. For him to be facing the building his torso would have to be twisted 180 degrees.
— bac (@bac__one) December 22, 2019
Some are coming to the debate with evidence:
if he was facing the building then his arms and legs would be bending backwards pic.twitter.com/FoTXFhnxyZ
— Wimpie 🇮🇪 (@WimpieUwU) December 23, 2019
Yall he's facing the camera..look at the supports of the actual swingset.
— 💫🐰 EMMI'S CHARGING PORT 🐰💫 (@Jaxxiloti) December 23, 2019
On some swings an extra support beam comes out from the middle of the sides, if he was facing the building the supports wouldn't make sense
While others are certain the person filmed is swinging away from the viewer and towards the building.
He is facing the building. End of discussion
— Lee Ingham (@lee1ngham) December 22, 2019
And then there are unicorns who see both:
I can literally see both ways. If I focus at the wall of the building, I can see that he is swinging towards the wall. While if I focus on the ACTUAL human being on the swing, I can see that he's going towards the camera.
— bea 💕 (@stoesselenaaa) December 23, 2019
i literally see both wtf
— nani nani🦋 (@nani_thompson) December 23, 2019
What do you see?
For the record, I see the swinger's legs facing towards the building, while the three people sitting around me in the office see the person swinging towards the camera.
My opinion appears to be the unpopular option both on the internet, and in my office, but I'm sticking with it.