And the name “relativity” itself, which suggests a rejection of absolutes, was introduced by the physicist Max Planck, not Einstein—Einstein disliked the name “relativity” precisely because it connoted a kind of relativism. He preferred the name “invariant theory,” which conjures up a very different set of associations. (The “invariants” in relativity are quantities like spacetime that all observers agree upon—and there are many of these in the theory.)
