<font color="yellow">At what point does Einstein's Theory of Relativity just become Einstein's Relativity.</font><br /><br />I doubt that will ever happen.The way I understand it a law is a simple statement about some specific thing such as F=MA or PV=NRT, usually a law can be explained by one equation. A theory is broader. I found this quotation at Scientific American. The main idea isn't to get the word "theory" removed from your idea. Far from it; finding a theory is a goal to be achieved.<br /><br /><i>"Many people learned in elementary school that a theory falls in the middle of a hierarchy of certainty--above a mere hypothesis but below a law. Scientists do not use the terms that way, however. According to the National Academy of Sciences (NAS), a scientific theory is "a well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses." No amount of validation changes a theory into a law, which is a descriptive generalization about nature. So when scientists talk about the theory of evolution--or the atomic theory or the theory of relativity, for that matter--they are not expressing reservations about its truth.</i><br /><br />My interpretation of "the last validation of Einstein's theory of relativity" is that it will detect, for the first time, the last unobserved prediction of relativity. We have seen time dilation, curved space, frame dragging, and now finally we hope to see those gravity waves. I don't think it means "this is the ultimate experiment and, at last, we will be done". <div class="Discussion_UserSignature"> </div>