‘What kind of sorcery is this’: Viral 3D arrow optical illusion leaves netizens in a spin

“This arrow by mathematician and sculptor Kokichi Sugihara can’t point left,” he tweeted before disclosing the trick behind the illusion. “Here’s how it works: It’s 3D-printed with a bunch of curves our brains don’t register,” he added. The video shows that even after rotating the arrow 180 degrees, it still keeps pointing towards the right.

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

It did not take long for the tweet to go viral, with many trying to comprehend the optical illusion. “So cool and yet so frustrating. How can this possibly be?” read one of the many comments.

What sort of optical illusion is this?🤷‍♂️ https://t.co/QwHSC00u11

— Ken (@_Wewa_) August 7, 2019

what new sorcery is this? https://t.co/7qfwZZB878

— IrvDizzle (@irvi_wan_kenobi) August 7, 2019

Adversarial attack on the brain? https://t.co/oxDhUFlYEH

— Bsaracik (@Bsaracik1) August 7, 2019

What is reality intermediated by our brains? https://t.co/D9pqgDTmFS

— Pete Mauro (@Mauronic) August 7, 2019

How cool is this??????? https://t.co/KXkVZPPHrW

— Pablo Mauleón (@mauleon_pablo) August 6, 2019

So cool and yet so frustrating. How can this possibly be? https://t.co/LXgawdhWqY

— CleverMarketer (@CleverMktr) August 6, 2019

Almost magical optical illusion. Eyes + brain, c’mon what are you doing? https://t.co/gwLNyMBMzP

— herschel (@heshridhe) August 6, 2019