6 ms·

I wanted to comment exactly this. The hollow face illusion https://en.m.wikipedia.org/wiki/Hollow-Face_illusion?wprov=sfla1 https://en.m.wikipedia.org/wiki/Hol

• thedirt0115 6y ago
  And interestingly, not everyone sees the illusion: https://www.ncbi.nlm.nih.gov/pubmed/27847925 https://www.ncbi.nlm.nih.gov/pubmed/27847925