I don't know who gave you the authority. But, scientists do not have that authority and do not make such ludicrous presumptions.
Case in point: This one was recently posted here at FR, but I've not got the time right now to search it out. A physicist at Harvard proposes that gravity may leak from a fifth dimension into the known four dimensions. Such a phenomenon, if verified, would radically alter our understanding of the "physical laws."
There are many other examples, some related to Einstein's theories on gravity, but the point is made.
Our understanding of physical laws changes constantly. Our understanding is scarcely recognizable from one century to the next.
What science agrees on is that the underlying phenomena do not change.