I didn't say there is no portal. I said the portal is just a hole. Holes don't have reference frames. >>Like walking through a door. The act of passing through a portal of this variety is completely mundane and you'd have no way of even knowing you crossed it if not for the boundary surrounding said portal. >Yeah but that's B tho >>The logic of scenario B relies on portals actively translating objects from one reference frame to another >Which is the definition of what they do. Now you're just actively contradicting yourself.