>>76737570
The law of diminishing returns states that eventual exponential effort in all things is needed to maintain a linear progression.
This is applied to all factors in life and with enough time becomes true in all cases.
There is no ad infinitum with weightlifting, lifestyle, 24 hour limitations, genetics. Many factors play in here.
So while initially you can progress linear in correlation with your weight increase.
You will have to specialize eventually like any other muscle group once you reach the point where your body gives out.
It's entirely dependent on the person.
Some freak of nature might break this rule for a while, until the rule becomes absolute.
If memory serves current pullup 1rm is somewhere like 450lbs (added weight included).
And that person was already using accessory exercises to get to that point beyond their body weight.