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A comment on 3D cartoon face and cat face from one image. Parent comment

Re:3D cartoon face and cat face from one image by oon on Friday April 17, 2020 @03:22PM (#22902091)
I wanted to comment exactly this. The hollow face illusion

https://en.m.wikipedia.org/wiki/Hollow-Face_illusion?wprov=s...

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Re:3D cartoon face and cat face from one image by thedirt0115 on Friday April 17, 2020 @03:32PM (#22902208)
And interestingly, not everyone sees the illusion: https://www.ncbi.nlm.nih.gov/pubmed/27847925
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