On Fri, Sep 27, 2019 at 7:40 PM Philip Thrift <[email protected]> wrote:
> On Friday, September 27, 2019 at 2:56:42 AM UTC-5, Bruce wrote: >> >> On Fri, Sep 27, 2019 at 5:01 PM Quentin Anciaux <[email protected]> >> wrote: >> >>> >>> 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. >>> >> >> That seems similar to the view of Chad Orzel: >> >> https://scienceblogs.com/principles/2008/11/20/manyworlds-and-decoherence >> >> His idea is that there aren't many worlds, just the wave function of the >> universe. So there is no splitting and no multiplication of worlds, there >> is just the wave function. And our world is just our path through this wave >> function. This is, therefore, a single world interpretation since we see >> only one world. The other parts of the wave function may exist, but they >> are not worlds like ours. >> >> Bruce >> > > > Philip Ball talks about Hossenfelder's take, then Orzel's take: > > > https://philipball.blogspot.com/2019/09/just-how-conceptually-economical-is.html > : > Ball's analysis is very much to the point -- there is no compelling evidence for many worlds and, despite the claims, Everettian approaches make just as many extra assumptions as other approaches -- they are just not as open about their additional assumptions/postulates. "Here, then, is the key point: you are *not* obliged to accept the “other worlds” of the MWI, but I believe you *are* obliged to reject its claims to economy of postulates. Anything can look simple and elegant if you sweep all the complications under the rug." (Ball) Bruce -- 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/CAFxXSLQA4Bz1EMeK1EYg5E%3DnRNqxDWvrPSJsuVcWAdSvOKr4nw%40mail.gmail.com.
