On Tue, Apr 19, 2016 at 12:30 PM, Bruno Marchal <[email protected]> wrote:
> > > "is" in which sense? > "sense" in which sense? You must be a fan of Bill Clinton who notoriously said in answer to a question in a legal deposition: "It depends on what the meaning of the word 'is' i s." > > > Some multi or multimulti verses could be everything physical that there > is, but not everything needs to be physical > But physicists deal in the physical that why they're bored to tears when people start talking about what things would look like from places that are impossible to exist even in theory. > > > exemple: the natural numbers, the complex numbers, > First of all we don't even know for certain that the Real Numbers exist much less the Complex Numbers, and even it they do they don't have a location. but a viewpoint does, it's a position of observation ; and if that location is not inside the multiverse it does not exist. > > > but logically, it is conceivable to have structure containing themselves, > Fine, but it is not logical to have something that is not part of itself be part of itself; like a place that is not part of the multiverse you can stand on to look at it from the outside. The multiverse has no outside. >> >> If the works of >> >> Galilee, Einstein >> >> or >> >> Maxwell >> >> were built on unphysical foundation >> s >> then today nobody would remember their names, instead they are among the >> most >> famous >> physicists of all time. In fact Einstein came up with relativity by >> trying to imagine what the viewpoint would be of somebody moving at the >> speed of light and >> >> discovered that viewpoint would produce logical contradictions >> , >> and therefore CAN NOT EXIST. > > > > > No, he put itself at the place of a photon which does move at the speed of > light, and concluded to the laws of relativity and to the fact that the > photon can't have a mass non null. I think. > Einstein figured that if the fundamental laws of physics were worth anything then they must be true for any frame of reference, but from the frame of reference of somebody moving at 186,000 miles a second all electromagnetic waves would have a undulating shape that changes in space but not in time and light would have zero velocity. But that would be contrary to Maxwell's equations, therefore Einstein concluded that the viewpoint of a observer moving at 186,000 miles a second CAN NOT EXIST. And after that realization the rest of special relativity fell into place. > > Many works of many physicists are built in part (at least) on unphysical > foundation: mathematics. > I can't think of one. It's true that before Einstein proved them wrong people though non-Euclidean geometry was unphysical, but a place to stand outside the multiverse will always be unphysical because if it was physical it would be inside the multiverse. John k Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
