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This mind-bending optical illusion stumped Elon Musk; can find out its secret?
The jigsaw appears to be normal at first. But when a user clicks on the GIF, the screen starts to flash black and the cubes appear to rotate. But are they actually moving or is it just your mind playing tricks on you?
TN Viral Desk
Updated Aug 10, 2022, 05:00 IST
Two Cubes optical illusion
KEY HIGHLIGHTS
- The illusion is caused by a perception principle called the phi phenomenon, according to experts.
- The term phi phenomenon is used in a narrow sense for an apparent motion that is observed if two nearby optical stimuli are presented in alternation with a relatively high frequency.
- However, the exact mechanism behind the visual trickery is still unclear to experts.
A 'physics-defying' optical illusion has left netizens baffled because it shows two stationery cubes that appear to be spinning.
The visual first went viral in 2020 when it was spotted by Tesla boss Elon Musk.
What do you see in the lead image? Two blue cubes of the same size, right?
The jigsaw appears to be normal at first. But when a user clicks on the GIF, the screen starts to flash black and the cubes appear to rotate.
But are they actually moving or is it just your mind playing tricks on you?
Take a look:
Well-known professor of Psychology, Steven Stewart-Williams, had tweeted about the illusion in 2020. He wrote: "One of the most powerful motion illusions I've seen: The cubes appear to be rotating in opposite directions – but they're not actually moving at all."
So what causes the visual deception?
It happens because of a perception principle called the phi phenomenon.
The term phi phenomenon is used in a narrow sense for an apparent motion that is observed if two nearby optical stimuli are presented in alternation with a relatively high frequency.
However, the exact mechanism behind the visual trickery is still unclear to experts.
The optical illusion exploded on social media because it received a "wow" from Elon Musk in 2020.
Different variations of the illusion have been created over the years.
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