The implication of that definition is that we've seen and experienced every possibility. Somehow I doubt we have.
I don't see any such implication of that definition. Quite on the contrary: if we had seen and experienced every possibility, there would be no way to contradict prior observations and thus disprove the law. Because the law
can be disproved, we necessarily must not have seen and experienced every possibility. Your assertion of such an implication is false.
Now if one would overturn a law of nature what they would actually be doing is correcting the empirical observations that produced that law.
Actually, no, they would just make new observations that would contradict the old ones. There's no way to "correct" past observations. You can at best try to explain them.
Empirical observation sounds so definitive and rings of authority but as history has taught sometimes even great minds have made mistakes.
Might I suggest that you do not interpret phrases according to what they
sound like, but according to what they
mean? If you look up "Empiricism" on Wikipedia, you will discover that it means the exact opposite of what you're asserting here. It means that as soon as Jim_Mich builds his perpetual motion wheel, the law of conservation of energy is disproved, even if ten thousand experts sign a petition that it should not be so. I'm sorry, but this doesn't ring of authority to me.
Of course, there's a catch: one must actually build that machine and show it to us; that's the empirical observation. It's not enough to engage in philosophical debates, make wild assertions that it's theoretically possible, and combined with anecdotal evidence, consider it as good as built.
What reality is and what human opinion says it is have in the past been two different things. I think that was Jim's point.
Of course. They are two different things even now, and will forever remain that. Human observers can never know what reality
is. Opinions is as close as we'll ever get. To imply that this universal truth supports the validity of PMM is a logical fallacy of irrelevant conclusion (look that up).
To build a working PMM means to make a new observation that contradicts all our previous observations (that no macroscopic system ever creates any energy). This doesn't mean that it can't happen. This just means that there is nothing more certain than that it won't happen. (As in, the sun could in principle rise in the west tomorrow, but nothing is more certain than that it won't.) Feel free to disprove the law of conversation of energy by making such an observation. Unless you do that, no amount of philosophical reasoning will make the notion of PMM, or the sun rising in the west, any more likely.
I said the " the laws of nature ... don't change." I stand by that statement. There is a difference between the "laws of nature" and mathematical expressions of those law and/or laws of science that are used to describe "natures laws."
I see. So what you're saying is, "if I exploit semantic ambiguities of definitions, maybe I can pull off a straw man logical fallacy".
Very well. If you insist that you used the term "law of nature" in the meaning "fundamental operating principle of the universe", and not in the meaning "scientific generalization based on empirical observations", then your reply to my comment on the Wright brothers was in no way relevant to what I was saying, sir.
Let me restate my original comment in a way that will (hopefully) no longer be ambiguous to you: The difference between the Wright brothers and you is that the Wright brothers, in order to succeed, didn't need to disprove any physical law, where physical law denotes a mathematical expression, a scientific generalization based on empirical observation, not a hypothetical fundamental operating principle of the universe that this law strives to express. You
do have to disprove a physical law in order to succeed.
If that is clear now, I invite you to restate
your reply in a way that will be relevant to my comment.