Life & Style

What Number do you see?

This optical swirl illusion which hides some digits has gone viral. It is hypnotic. and may reveal surprising information about your vision.

Gali Raz

Published

April 11, 2022

What number do YOU see - Twitter — What number do YOU see?

This optical swirl illusion which hides some digits has gone viral on Twitter. It is not only hypnotic. This swirl may reveal some surprising information about your own vision.

The puzzle was tweeted by @benonwine who reached thousands of Twitter fans from all over the world since it became viral, and has reached widely divergent opinions about the concealed figures. The grey and white stripes are arranged in irregular spirals, making identifying the number more difficult.

According to Mail Online, this illusion operates by manipulating contrast sensitivity, which is often considered to be a critical indicator of visual function.

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Contrast sensitivity refers to the capacity to discern tiny shading and pattern variations. Contrast sensitivity is critical for identifying items with blurred edges and differentiating objects or features from their backdrop, such as the capacity to discriminate between stairs covered in patterned carpet and those that are not.

The actual hidden number contains seven digits: 3452839. Do you see it?

528. And I can see some other numbers that people have mentioned if I scroll back and forth and really try but if I hadn’t moved the image they were not visible.

— Barb Kiebel (@CreativCulinary) February 17, 2022

I first saw 528 then looked again to see 3462831

— Kay Van Cooten (@CootenKay) February 25, 2022