This is one of those things that has bothered me for as long as I can remember.
I come up with some mechanical idea, do a rough sketch and a very crude approximation of forces and distances and all that, build and test.
Now in the process of all this I get these force amplification relationships. In a lot of systems what I see, and can calculate, is a massive force being created but since it is against a non-changing part there is no work being performed and the very small reflected force that can move happens to match the input to the output for a 1:1 work value.
The part that bothers me is that I can build something to where that non-changing force goes to infinite, I can build this in the real world but of course things don't hold up to an infinite force but I can see these ridiculous force values trying to manifest. The bothersome part is HOW does the system only reflect the exact amount for a 1:1 work transfer? what is 0.1 percent of infinite?
I can't help but think that there is another level of communication that is happening between the input and output that I am missing, maybe we all are missing it.