Note by Jim: I'm posting this page here, because John Duffield, who is a nice guy actually, and self-proclaimed "physics detective", censored my comments, despite claiming he's pro-free speech in science. Obviously, like most censors, he means he does not censor comments he agrees with, or thinks he can find a plausible refutation for. Scroll down to where I discuss relativity with Duffield, and then he censors me ("Post awaiting moderation"). But, try as he might to hide it, the truth will out! Who is correct, John, or me (Jim)? I will leave you to make up your own minds. To re-iterate, I post this here as a record of the whole truth. Also, as a gesture against censorship in science.
I have not included, here, the (long) article itself, as of July 05, 2021, written by Duffield (much of the contents of which, on that date, at least, I disagree with). I have included the comments between Duffield and me, including those comments that he decided to censor (scroll towards the bottom of the page).