Complexionists believe in complexionism. The idea that life is determined by complex processes and that the purpose of humankind is to research and discover these processes and make best use of it for our survival
An individual who frequently strives to have a complete set of something, regardless of whether or not the individual pieces have any importance or value.
Boy: I've almost caught every singlePokémon!
Girl: Aren't there like 700 something now? You can't possibly raise them all.
Boy: Yeah, but I HAVE to catch them all!
Girl: Ugh, you're such a Completionist!