I think you have good advice. In the future, I will try to ignore responses that seem designed to dodge the question, like bringing up unrelated posts from months ago, and just look for answers.
And to clarify, naturally none of the witnesses at Dealey Plaza noticed the 1/18 th of a second forward head movement of two inches between z312-z313. But the movement I was asking about was the backwards motion from z313-z318 of about ten inches (as I recall). It seems that none of the Dealey Plaza witnesses noticed this at the time. So, it seems reasonable that Dan Rather would also not notice this from his one time viewing of the Zapruder film. Despite what others said, I don't think Dan Rather 'knew' ahead of time exactly what he was going to see in the film and, like the Dealey Plaza witnesses, was so shocked by the head explosion that he did not notice or remember the slow (maximum speed of just under 2 mph) motion of the head and torso backwards during z313-z318.
And on another note, some might claim that Dan Rather did see the brief forward motion of 312-312 of two inches. I don't think that would be possible from a one=time, real time, viewing of the Zapruder film. Certainly highly implausible. It was likely the subconscious of Dan Rather figuring out what he should have seen, not what he actually saw. A common sort of error that people make from a one time viewing of an event, whether in person or on film.
I think you have good advice. In the future, I will try to ignore responses that seem designed to dodge the question, like bringing up unrelated posts from months ago, and just look for answers.Very disappointing. First of all, my response was not designed to dodge the question at all. I merely asked you what the purpose of it was (I now know and it was exactly as I expected). You then asked me why I assumed 'bad intent' from a LNer and I answered with two examples. Now you complain that I brought up "unrelated posts from months ago" but how else, but with examples, was I going to answer that question?
This "us against them" thing LNs have is all over this thread. No need to pretend otherwise. It's beyond obvious to see.