Sabine's version of "real" - that the universe cannot exist without this is a better one imo Worm holes aren't real until we can't describe phenomenon without

Sabine's version of "real" - that the universe cannot exist without this is a better one imo Worm holes aren't real until we can't describe phenomenon without them. Same with the aether. Black holes and chairs are real because we can't make a theory that doesn't include them while still making accurate prediy