I really REALLY don't like "now imagine magical paper" But if we substitute "an etch-a-sketch" which shakes before you write on it... I am a bit worried how "

I really REALLY don't like "now imagine magical paper" But if we substitute "an etch-a-sketch" which shakes before you write on it... I am a bit worried how "state" becomes the second thing when pure functions are in one thing. State mutes. As does the return variable. Pragmatically, it's all quasi-religous flimflam. Is an endo function like endo scopy?