I don't think bitcoin "either goes to zero or infinity". I think there's a solid middle ground where it behaves a bit like a moderately popular alternative asset for a long, long time, maybe hovering between 80-200k. If it crabwalks for a few decades or more, I think globally our economic/technological systems will evolve somewhat beyond "money" in any way we think of it now (but possibly still in a way that bitcoin might have a purpose).