There's a metaphor in here somewhere.
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RT @qikipedia
The Troxler fading is an illusion whereby if you look at a certain spot, the static image around it quickly disappears. This happens because the brain adapts to new information and filters it out if it doesn’t change.

Stare at the cross and see what happens… (Image: Bautsch.)
https://twitter.com/qikipedia/status/1270724903935733765