You're trying to play word games as an argument, when in actuality the use of "Surely" leaves little doubt as to what Lucci is trying to communicate.

Even if we use "surely" in a liberal manner, it is still more likely then not.

Oh wow someone is agreeing with me.

Only because in this instance you appear to be at the very least partially correct.

Lol at that one.

Pirates

the word can only be interpreted in a nonliteral manner because lucci knows NOTHING of luffy's body limit

it's speculation on his part, and unless chopper specifically says so, than i won't believe it

He knows the human body limit. He also at this point knows his opponent pretty well. Well enough to know what Luffy was doing and how it would improve him. When Lucci makes that claim, he is doing so after having already accounted for the body being rubber.

Luffy also confirms Lucci's observation by saying shortening his life is better then losing his friends, and that he is willing to make the sacrifice.

luffy wouldn't know heisn't a doctor, neither is lucci you'll see after a while when there wont be any effects from usage

A fighter wouldn't know when his body is being pushed beyond it's limits? Can an alcoholic not understand when he's gone too far? I assure you they can. Two experienced fighters both saw the same action and came to the same conclusion. It's common sense and you're using astonishingly poor arguments once again. Not only that, but you've set up a potentially impossible scenario where the only instance in which you could admit being wrong is if Chopper diagnoses Luffy with it. But the problem is, despite being way too specific of a request (it may not ever happen, even if true), but if it does occur it wouldn't be years later into Luffy's future / the storyline.

On top of everything else, it doesn't matter that Luffy & Lucci aren't doctors. Why? Because they are still right. How? Because Oda knows more then any doctor in the one piece world, and he's the one who led these two fighters to the same conclusion and seemingly closed the matter.

''ow i dont know if i have a broken leg, cose i'm no doctor'' this is ur statement