On Friday, September 27, 2019 at 12:53:14 PM UTC-5, Bruno Marchal wrote: > > > On 27 Sep 2019, at 09:35, Philip Thrift <[email protected] <javascript:>> > wrote: > > > > On Friday, September 27, 2019 at 2:01:45 AM UTC-5, Quentin Anciaux wrote: >> >> >> >> Le ven. 27 sept. 2019 à 08:41, Philip Thrift <[email protected]> a >> écrit : >> >>> >>> >>> On Thursday, September 26, 2019 at 7:01:19 PM UTC-5, Lawrence Crowell >>> wrote: >>>> >>>> On Wednesday, September 25, 2019 at 6:54:59 AM UTC-5, John Clark wrote: >>>>> >>>>> It seems that nearly everyone on the list has a strong opinion >>>>> about Sean Carroll's new book, but has anyone other than me actually read >>>>> it? >>>>> >>>>> John K Clark >>>>> >>>> >>>> I have not read his book, but I have read his papers and the one he >>>> coauthored with Sebbens. I know what he has done. I am definitely agnostic >>>> about MWI as I am with all interpretations. Carroll and Sebens has though >>>> opened the door to a relationship between the Born rule and MWI, and I >>>> suspect quantum interpretations in general. Now that is something I find >>>> potentially very interesting. >>>> >>>> LC >>>> >>> >>> >>> >>> See if Sean Carroll answers the question of "weighing" worlds: >>> >>> *How much is too Many Worlds, is it just right?* >>> https://groups.google.com/d/msg/everything-list/E3WLUdnW8jI/MLPg3dAhAgAJ >>> >>> >>> Suppose world W branches (in reality, not in "bookkeeping") to worlds W0 >>> and W1. >>> >>> If reality is pure information (basically purely mathematical bits of 0s >>> and 1s), then that sort of "production" seems OK. >>> >>> But what if W is (or contains) matter. Based on matter contents of W, >>> W0, and W1: >>> >>> *If the matter contents of W0 plus W1 combined is greater than the >>> matter content of W, **how was the extra matter "produced"?* >>> >>> >>> Two answers so far: >>> >>> 1. *If an infinity of indiscernible universes already exist at the >>> start and are only differentiating/diverging (instead of splitting), then >>> no matter is created, all of it was already there.* >>> >>> 2. *Differentiation rather that duplication of matter is one >>> possibility, but duplication of matter is not logically impossible either. >>> Empirically, we have that matter cannot be created, but that is within a >>> single world.* >>> >>> >> And you forgot 3- it's always the same matter in w0 and w1, just seen >> from another POV, like a circle in a 2d plane could be thought to be from a >> sphere or a cylinder intersecting a 2d plane, so if you see the many 2d >> planes intersecting the cylinder, they see each a part of it, no new circle >> are created on each plane. >> >> Quentin >> >> >>> >>> > > Sorry I missed it. This is the first I've read that answer. > > Keep them coming! > > BTW Sabine Hossenfelder just posted her Many Worlds view: > > http://backreaction.blogspot.com/2019/09/the-trouble-with-many-worlds.html > > @philipthrift > > > > See my answer to spudboy. There is no matter, and 0 physical universe, > just the computations emulated by the +/* structure of arithmetic; that is, > all computations. That include the quantum one, but that does not explain > the quantum one. To explain them, we have to prove that only them win the > first indeterminacy problem in arithmetic (or there will be an appel to > something non Turing emulable or first person recoverable. > > But even with quantum mechanics, that problem can be solved, as the laws > are statistical, and the universe never interact. Linearity precludes us to > steal the oil in a parallel universe. Amazingly, if QM was not 100% linear > (if the wave equation was only the first term of some series) we would be > able to interact in between universe, but thermodynamic would get wrong, > relativity would become wrong, well, nobody try this anymore. > > Bruno > >
If *There is no matter, and* [whatever follows] -- if that is true -- then I am happy with anything the Many Worlders say is real, or anyone else's "interpretation" of reality. It doesn't matter :) because then one is just talking about fiction, i.e. criticizing texts (what people write). @philipthrift -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/b4492144-2e17-44a3-9fcd-a518a3b4ecf6%40googlegroups.com.
