if a poem is more than three words long nobody will read it. if a song has more than three chords to it, people will think its too complicated. if a piece of art is monochrome or free people will say 'my three year old could do better''. if a kid is sightly individual or different the other kids will bully them and go out to hurt them. if a health problem doesn't fall into an obvious category, they will say its 'stress' or ''all in the mind''. all insulting behaviour. when people don't understand something, they are made afraid by their own limitations.