On Friday, August 9, 2019, smitra <[email protected]> wrote: > I remember the year 1980, but what I remember is due to brain processes > that exist right now. I can only ever probe the present moment, there is no > way to prove that 1980 physically exists or existed (whatever the past > tense is supposed to mean). So, if 1980 exists (existed) it must be > considered to be a parallel world where the people in our memory of that > time really exist (existed). The time evolution operator from that time to > the present can be expanded in a basis where complete sets of commuting > local observables are diagonal. One of the simultaneous eigenstates is the > present world we find ourselves in. So, if we assume that 1980 is indeed > real and the present world which is one particular component of that same > 1980 state written in a different basis, then it's plausible that all the > other MWI parallel worlds of 2019 are equally real. > > This sounds similar to Wei Dai's "really simple interpretation of quantum mechanics": http://www.weidai.com/qm-interpretation.txt
Regarding the reality of other points in time, while we can't disprove the theory that the universe was created 5 seconds ago in it's current state, it is an implication of special relativity that all points in time are real as this paper describes: http://philsci-archive.pitt.edu/2408/1/Petkov-BlockUniverse.pdf Jason -- 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/CA%2BBCJUi5xX5L3LDtiOyLq8hcuA3df4dzEvLwQt%2BAXUp2c4yW0w%40mail.gmail.com.
