I want to address here as some say "problem" of limits at infinity from my paper and video, based on the example given by "Guest" here on the forum and as tarmaljed1609 and g3ncollaz in the comments under the video on Youtube.
As it was presented here during the discussion and also within some other comments under the video. It is ok in mathematics to say
[tex]\lim_{x \to \infty}(x+1)=\lim_{x \to \infty}(x)+1[/tex] this is
OKbut not ok to move one term to the other side to have
[tex]\lim_{x \to \infty}(x+1)-\lim_{x \to \infty}(x)=1[/tex] but this is
NOT OKAnd the reason is that [tex]\infty= \infty +1[/tex] is
fine, but [tex]\infty - \infty =1[/tex] is
not fine as an effect of transformation of our first expression into second one.
This is NOT correct !
We just need to understand what is going on here. Basically limit at infinity means what is going on with a term when we are increasing x to infinity. But,
infinity is not a number it is a direction. So increasing x to infinity means that we are changing a value of x through all possible values in the direction to infinity. It is
"continuous process", we can increase x to make it bigger and bigger forever. During this process values of certain term of x (in our case below [tex]f(x)[/tex] and [tex]g(x)[/tex] ) become closer and closer to an asymptote it can also happen that values of this term of x will be exactly on the asymptote. It is generally accepted that when this asymptote is horizontal we say limit exists, if asymptote is not horizontal - limit does not exist, but we still can and should understand what is going on, because we can get valuable information from this.
Lets say we have two functions from our example above.
[tex]f(x)=x[/tex] and [tex]g(x)=x+1[/tex]
We can present both on the graph like below.

- 2023-11-06_203117.png (151.38 KiB) Viewed 1793 times
As we can see when [tex]x[/tex] is increasing (black arrow) to infinity, values of [tex]f(x)[/tex] and [tex]g(x)[/tex] are moving along red and blue lines/arrows. Even though we can say that these values are growing to infinity, but we can also say that each arrow is pointing to something else. Therefore equation
[tex]\lim_{x \to \infty}(x+1)=\lim_{x \to \infty}(x)+1[/tex] is OK, because as we are increasing [tex]x \to \infty[/tex] on the LHS we are moving along the blue line while on the RHS we are moving along the red line, but every point is always shifted "plus 1 up" which will be exactly the same as moving along the blue line. For any "extremely big" x we can say that g(x)=f(x)+1 and it is true.
Can we say based on this equation that [tex]\infty= \infty +1[/tex] ? No, because first of all infinity is NOT a number so we can NOT add to it, but also we have here two "different" infinities (directions) represented on the graph by the red arrow and the blue arrow. Problem starts when we are forgetting about this continuous process and trying to substitute our term by "value" like [tex]\infty[/tex]. Then making mathematical operations on it. Equation
[tex]\lim_{x \to \infty}(x+1)-\lim_{x \to \infty}(x)=1[/tex] is also OK, because as we are increasing [tex]x \to \infty[/tex] on the LHS we are "measuring" the difference between the point one the blue arrow and the point one the red arrow 1 which is in this case always 1.
Can we say based on this equation that [tex]\infty - \infty = 1[/tex] ? No, because we have here still two "different" infinities (directions).
Based on this example I wanted to show that I really don't care if in (3.65) (34:51 in video) of my paper [tex]\lim_{i \to \infty }\frac{A_i}{2^{\nu(B_i)}}[/tex] is infinity or not and also if [tex]\lim_{i \to \infty }\frac{B_i}{2^{\nu(B_i)}}[/tex] is infinity or not. For me it is important that both these terms when [tex]i \to \infty[/tex] become closer and closer to certain asymptotes in the way that formula (3.65) is correct. Based on math rules I can say "if X=Y+1 is correct then X-Y=1 is also correct no matter what X and Y are", and therefore (3.66) is correct, which is enough for me to prove Collatz Conjecture.
paper here ->
https://www.researchgate.net/publication/351347153video with explanation here ->
https://youtu.be/FIZjITBbi2Y?t=2092