A cognitohazard is a artificial pattern, usually visual, that actually hacks the human brain causing harmful psychological effects to anyone who sees it. The initial idea came from the author David Langford, from his story BLIT: http://www.infinityplus.co.uk/stories/blit.htm, though the idea of an image too dangerous to look at appears in many fictional works (Including a … Continue reading Cognitohazards – Things you don’t want to see for Cepheus\Traveller