Is there any line past which it becomes unreasonable?
> It would not be reasonable to allow machines to do that at unlimited scale without restrictions.
If the machines were a replacement for a damaged respiratory system in a human would it reasonable?
What about if the machine were being used by a human to do something else that was important?
Where is the line where it becomes reasonable?
That's exactly the question we should be asking about AI and fair use.
Because the alternative would be to just railroad people who don't agree, and even when it does work in one's favor the pendulum tends to swing back hard in response.