1. You gave a starting point of Z277 and a stopping frame of Z287, which is 11 Frames. Sorry about that!
One, but you can't count the first frame as the time it took to perform the actual movement if that's the point from which he moved, unless you assume that the son was already in motion in Z277. This isn't like counting calendar days. If he was not in motion in Z277, then you can't count Z277 as part of the time it took to perform the movements.
Two, but as I said in my reply, let's assume 11 frames for the sake of argument. Again, 11 frames is only 0.61 seconds--as opposed to 0.56 seconds for 10 frames, a whopping difference of 0.05 seconds (or 1/20th/second). 0.61 seconds is still far, far too little time to perform the movements that the son performs. No one can go from the son's starting-point position to standing calmly and clapping in just 0.61 seconds, even if one assume the son was moving by or even before Z277.
Prove me wrong. Do a reenactment with a child around the age of Brehm's son. Heck, use an adult if you want. Videotape the reenactment. Prove that someone can perform those movements in no less than 0.61 seconds. You can even have the person start moving before you start timing him/her. Do the reenactment and post the video. Let's see it.
2. On your Zapruder misinformation page you said that you had your son standing behind a chair when you carried out your experiment because you assumed that Brehm's son was standing but as I pointed out, in the frame previous to your starting point we can see that Brehm's son was already in motion. You amateurs with your self serving assumptions, make me laugh!
"You amateurs," huh?! And who are you? What books have you published on the JFK case? How many degrees do you have? What's the URL for your JFK assassination website? What articles have you written on the subject? Trolling the Internet in defense of a theory that 2/3 of the Western world rejects does not qualify you to be attacking anyone as an "amateur."
And, I hate to say this, but you really shouldn't call someone an "amateur" and then in the same sentence commit a basic writing error. The term "self serving" in your sentence should be hyphenated ("self-serving") because it is a unit modifier. In fact, when the word "self" is used with another word to modify a third word, it should be hyphenated. If you doubt me, Google "self unit modifier punctuation."
Anyway, you don't know if the son had merely finished shifting his foot in Z277, as people often do when they're standing for a time. The rest of his body appears to stay in the exact same position until Z279, so the movement of the right foot is something of a thin reed on which to base your argument.
But, as I said above, go ahead and assume that the son started moving before Z277. That does not alter the fact that by Z287 he is standing calmly--and even clapping--beside his father, showing no signs of having completed what would have had to be a very rapid movement, as my reenactment with my son proved. Again, my son failed to match the Brehm son's time even though he was practically jumping on his last three attempts.
Whatever you want to assume about the son's movements before Z277, you still need to get him beside his father standing calmly and clapping by Z287. Again, if you assume he was moving by Z277, that gives you just 11 frames, only 0.61 seconds. Do a reeactment, videotape it, and post the video. Let's see it.
3. I made a stabilized real time GIF across the frames you specified and there is nothing unusual, how about you show this GIF to someone who is completely impartial and get their opinion because I did and they saw nothing unusual, only a simple natural movement.
As a matter of fact, I have actually showed the Brehm son's movement to people who knew nothing or very little about the case, and every single one of them said it was unnaturally fast, impossibly fast, unfeasible, etc.
Your phony GIF starts too soon and thus the movements take more than twice as long as the movements in the Zapruder film, even if you assume 11 frames as the time span.
Your points are just more amateur observations, for example the difference of perspective is the reason of your perceived difference in Jackie's position on the trunk in Nix and Zapruder.
And I say this is total hogwash. You know this is nonsense, or else your eyesight is quite bad. This is not even a close call. In the Zapruder film, Jackie goes nowhere near as close to Agent Hill as the Nix film shows her going. Z380 shows her as close as she gets to Agent Hill in the Zapruder film, before she starts to move backward to return to her seat, which movement begins in Z381. Anyone with decent vision can see that she is much closer to Hill in the Nix film than she ever gets to him in the Zapruder film.
Moreover, in the Nix film, she is sprawled lower on the trunk--her body is clearly closer to the trunk than it is in the Zapruder film; her right arm is extended farther than it is in the Zapruder film; and her right forearm appears to be almost touching the trunk, whereas in the Zapruder film her right forearm remains virtually straight and at about a 45-degree angle in relation to the trunk. In addition, in the Nix film, her head appears to be almost touching Hill's head, whereas in the Zapruder film her head is at least 3 feet from Hill's head. I know you can see these things. They are obvious.
And, by the way, the camera
angles of Zapruder's and Nix's cameras in relation to the limo during this sequence, though shot from opposite sides of the limo, are not markedly different.
I recommend Milicent Cranor's detailed article on this crucial evidence of alteration:
https://whowhatwhy.org/politics/government-integrity/jfk-assassination-film-proof-of-tampering/And your Malcolm Summers gaff is another perspective mistake, Malcolm's left leg is not bent backwards but is splayed forward, with his left shoe clearly visible over the top of his right shin.
More nonsense. Do you think people aren't going to see that your description is misleading and incomplete? In Z353 Summers' left leg is extended most of the way out. But, in the very next frame, Z354, just 1/18th/second later, the foreleg is bent markedly backward. Then, in Z355, 1/18th/second later, Summers' left leg is bent even farther backward. Then, in Z356, the left foot seems to be on the ground. Are you telling me you can't see these things? Really?
Again, either your eyesight is bad or you are dissembling.
But, hey, this is another case where you can prove your point by doing a reenactment, videotaping it, and posting it. I tried duplicating Summers' left-leg movements and could not even remotely come close. They are way too fast for humans on this planet. If you say they are normal and doable, then it should be a simple matter for you to prove this claim with a reenactment. Let's see it.