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] > <javascript:>> 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 -- 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/6c3c4f0f-b27f-4d2f-a196-1447e744615d%40googlegroups.com.
