There will have been discovered a static image which causes harm of a type unknown in 2022 for at least five percent of the us population.

The harm is some kind of mental or neurological feedback loop which acts over a relatively short time period (<5 minutes)

Must be known before Feb 1 2032

I.e. this type of image: https://en.wikipedia.org/wiki/BLIT_%28short_story%29?wprov=sfla1