You're quite right. I happened to notice your reply before I logged off. I didn't mean to just have the last word and run off, sorry if that was the impression. I was just explaining my comment about the paradoxicality of motion if spacetime is treated as series of points a la Zeno, which you'd asked about, and explaining that I was about to disappear from the discussion. I didn't want to go without warning. I shouldn't have mentioned Lynds. I'd like to discuss Zeno with you but will have to come back another time. Sorry if it seemed I was point scoring. My mistake.