You're talking about something else. Or rather, my line of argument ran into a distraction hazard, namely relativity. I wasn't trying to talk about relativity, but I should have seen that coming. And now everybody's very keen to explain relativity to me, dammit.
I did give a response to the non-relativity interpretation too.
Sure, it wasn't clear which way you were going with that question, but I recognised that it could have been either.