On Thu, Jul 1, 2021 at 2:03 PM 'Brent Meeker' via Everything List < [email protected]> wrote:
*>>> It's more that a particle or a system of particles exist in a single >>> physical state, which is represented by different components in our basis >>> for the Hilbert space. * >> >> > >> To me that sounds like a basically correct but needlessly convoluted >> euphemism for saying the universe splits. I mean… How would things be >> different if instead of the "*a particle or a system of particles exist >> in a single physical state, which is represented by different components in >> our basis for the Hilbert space*", the universe just split? Seems to me >> that if one thing needs two "*different components in our basis for the >> Hilbert space*" then you don't have 1 thing, you have 2 things. > > > > No, it's just like a representation of a vector. It has an x-component > and y-component but it's one thing, The electron's wave function may be just one thing but I'm far more interested in the electron than I am with its wave function. The electron is observable, the electron's wave function is not, and the wave function is not fundamental either, you can do quantum mechanics and not use Schrodinger's equation at all, matrix mechanics doesn't need it. > *> a Hilbert space can have countably many dimensions. This doesn't > directly have anything to do with the world splitting. That comes from > making a measurement. * > Exactly what I've been saying, you can't make a measurement without making a difference and you can't make a difference without splitting the universe . John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis> pwe2 -- 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/CAJPayv1UZ4W4NptwOOSjMVNMGotuuMXfrSAJ6o4XMJ3_Y8deEg%40mail.gmail.com.
