> On 16 Feb 2020, at 05:50, 'Brent Meeker' via Everything List > <[email protected]> wrote: > > > > On 2/15/2020 9:09 AM, smitra wrote: >>> >>> That's funny, since 20 lines above you invoked the_ lack_ of >>> isolation to explain measurements. >>> >>> Brent >> >> Measurement can be fully described by local interactions, so it's compatible >> with the entire system comprising of measured system plus observer, being >> completely isolated. > > In a completely isolated system it can only be a mixed state FAPP unless > there is non-unitary evolution.
Is not the physical universe (assuming that exists) completely isolated? If you were right, there would be no quantum mechanics. You lost me here. Bruno > > Brent > > -- > 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] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/2119cdf4-ddfd-3dc9-4a44-b54e71219a0f%40verizon.net > > <https://groups.google.com/d/msgid/everything-list/2119cdf4-ddfd-3dc9-4a44-b54e71219a0f%40verizon.net?utm_medium=email&utm_source=footer>. -- 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/2BC5E092-3DF8-4F57-ABD8-361AB58B2D34%40ulb.ac.be.
