I told you already that this video is just "for dummies" I see now that you are definitely NOT .... in this category. I have no problem to address any questions on the subject, but I have a bit of problem to reply to aggressive and highly frustrated people (maybe because of some personal problems) quote "You say a lot of bulsh*t". I have to say it is a bit annoying. Anyways....
I would expect that you are able (at least) to listen carefully and understand (which I see is not the case here). So starting from your first point.
1. at 1:17:50 of the video it is stated "we can influence this process in two different ways either to shorten this number immediately to one ..." at your number 2^4150000000 is exactly this case. I can predict how many of odd numbers will be starting from a number like 2^4150000000-1 if you are interested ? This will be 19998192982 (odd numbers in the sequence) +/- 0.0000001%, you can check it.
2. Quote: "You say a lot of bulsh*t. e.g. 1:17:40 you say we can only influence a limited number of initial iterations: Totally untrue. You can set in a very predictable way any (yes any) initial number of iterations like it pleases you."
Yes you can set "any" length of the initial number and even set it in predictable way, which only support my statement that by doing this you will influence only LIMITED number of initial iterations. "Any length" of initial number is still "limited length". The same way as you can have any length of the sequence (if the number is big enough). You can have two opposite scenarios you can influence the number setting it in the way that it will collapse immediately to 1 or to make it the "worst case scenario" using only 1's in binary notation then it will be extended for some (limited) number of iterations. Everything between these two scenarios is kind of more or less chaotic setup. But by setting up limited number of digits you are only able to influence limited number of initial iterations!
Your example is not correct (not as you described it) there are not "10 increasing steps followed by 2 decreasing steps followed by 5 increasing steps" it is actually 10 incr,1 decr, 6 incr steps. As you can see it is not as easy as you think. Anyways still you were able ONLY influence the limited number of initial iterations then CHAOS WON !
If you think that it is so easy to control give me an example to have 5 inc, 7 dec (slope 4) , 3 inc, 8 dec (slope 4), then 10 dec (slope 16=2^4) and 3 inc. You've said it is easy ...
Your example on the picture.

- 2024-02-07_194319.png (111.69 KiB) Viewed 2497 times
3. It was not the goal of this video to prove anything, only explain a main idea of my paper which contains the proof. It was presented that positive bits have a slope of 3, the smallest negative bits you can control only for a while and then they tend to have a slope of 4, so contraction of the length is a must.
4. To achieve this, your initial number has to be infinitely long; otherwise, CHAOS will WIN!