Reflections on relativity

摘要

The paradox of Einstein's theory of special relativity is that it is so simple- at least compared to the ether-pervaded notions that predate it-yet it nevertheless defies our intuition. For this we can blame God. After all, he was the one who sentenced us to a life in the slow lane while knowing full well that the essential unity of space and time, momentum and energy, and so on, can be appreciated onlv from the exnress lane.