ice-nine but for concepts. someone invents a newer, shinier purple and once you see it you're completely incapable of seeing regular purple as anything but the new stuff
someone says the New Hello to you and you can't even remember the words to the Old Hello. you're sure you knew it once, but the memory is simply replaced with the New Hello. you greet someone and the New Hello comes out your mouth
this is what its like to realize youre queer
suddenly you literally cant think straight because youre recontextualizing everything about how you approach(ed) the world
and also its a great concept for an existential horror piece
