Simple arrow illusion causes headaches and confusion as ‘it can’t turn left’
If you’re still feeling a little fuzzy from the weekend, then here’s a conundrum which will blow the cobwebs away.
Or just give you a headache – we actually can’t decide which.
It comes courtesy of a 3D sculpture of an arrow shown in a video posted to Twitter by ThamKhaiMeng and has quickly attracted a lot of attention thanks to its mind-bending quality .
In the clip, we see the arrow, which was designed by mathematician and sculptor Kokichi Sugihara, being turned. But no matter how many times it gets turned, it never seems to point left.
This arrow by mathematician and sculptor Kokichi Sugihara can't point left. Here's how it works: It's 3D-printed with a bunch of curves our brains don't register. pic.twitter.com/Xa32GrI7ii
— Khai (@ThamKhaiMeng) August 4, 2019
Despite some people’s suggestions, however, it’s not witchcraft.
It’s instead down to the shape of the arrow and the angle at which it’s filmed.
In fact, when it was suggested that the illusion existed simply because our brains “couldn’t register it”, a lot of people got very angry.
One such person wrote: “This has nothing to do with our brains. It’s an optical illusion created by the angle of the camera and shape of the arrows.
“You can literally see both arrows at the same time when he turns them.
“‘Our brains don’t register’… Sometimes I hate this site.”
Even with this valid explanation, judging by the ongoing reaction, many still found themselves confused.
Read more about this from the source.