On Sun, Nov 10, 2019 at 11:22 PM Bruno Marchal <[email protected]> wrote:
> On 7 Nov 2019, at 22:58, Bruce Kellett <[email protected]> wrote: > > On Fri, Nov 8, 2019 at 8:53 AM 'Brent Meeker' via Everything List < > [email protected]> wrote: > >> ISTM that creates problem for defining a point where one of the >> probabilities becomes actualized. MWI tries to avoid this by supposing >> that all probabilities are "actualized" in the sense of becoming orthogonal >> subspaces. There are some problems with this too, but I see the attraction. >> > > You can always find problems with any approach. What I particularly > dislike about MW advocates (like Sean Carroll) is that they are dishonest > about the number of assumptions they have to make to get the SWE to "fly". > Particularly over the preferred basis problem and Born rule. Zurek comes > closer, and he effectively dismisses the "other branches" as a convenient > fiction. If these other branches play no effective role in explaining our > experience, then why have them there? > > > How could some terms in a wave expansion disappear without assuming some > non unitary collapse of some sort? > I did not say that they disappeared: merely that they do not play any role in explaining our experience. If you can point to any such role, then fine. But I doubt that you can do this. > There is no preferred basis, only personal basis to be able to interact > locally in between us. > Again you appear to ignore the primary role of science is in explaining our experience. In our experience, there most certainly is a preferred basis -- the world around us has not dissolved into the "mush" that Schroedinger feared so much. If there is only a "personal basis", explain to me why your personal basis does not include superpositions of live and dead cats. 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/CAFxXSLQeVLEhnDECFz_%2BZi3b7wo5QtQR7UenRsR%3D3LrmeJQ1RA%40mail.gmail.com.
