It is the case that objectivity or the existence of an ontological reality is uncertain. With the Frauscher-Renner result it is also uncertain to what extent quantum mechanics is epistemological. Even measurements do not yield a consistent result between all possible observers. So what is known by Alice may not agree with what is known by Bob. QM is then a system that does not under all circumstances yield results or answers that are completely consistent within itself.
LC On Saturday, January 11, 2020 at 4:08:54 AM UTC-6, Philip Thrift wrote: > > > > > > it predicts that it appears to observers as if there was an external world > that evolves according to simple, computable, probabilistic laws. In > contrast to the standard view, objective reality is not assumed > > OK. :) > > @philipthrift > > > > On Saturday, January 11, 2020 at 3:36:51 AM UTC-6, Evgenii Rudnyi wrote: >> >> "According to our current conception of physics, any valid physical >> theory is supposed to describe the objective evolution of a unique external >> world. However, this condition is challenged by quantum theory, which >> suggests that physical systems should not always be understood as having >> objective properties which are simply revealed by measurement. Furthermore, >> as argued below, several other conceptual puzzles in the foundations of >> physics and related fields point to limitations of our current perspective >> and motivate the exploration of an alternative: to start with the >> first-person (the observer) rather than the third-person perspective (the >> world). In this work, I propose a rigorous approach of this kind on the >> basis of algorithmic information theory. It is based on a single postulate: >> that universal induction determines the chances of what any observer sees >> next. That is, instead of a world or physical laws, it is the local state >> of the observer alone that determines those probabilities. Surprisingly, >> despite its solipsistic foundation, I show that the resulting theory >> recovers many features of our established physical worldview: it predicts >> that it appears to observers as if there was an external world that evolves >> according to simple, computable, probabilistic laws. In contrast to the >> standard view, objective reality is not assumed on this approach but rather >> provably emerges as an asymptotic statistical phenomenon. The resulting >> theory dissolves puzzles like cosmology's Boltzmann brain problem, makes >> concrete predictions for thought experiments like the computer simulation >> of agents, and suggests novel phenomena such as "probabilistic zombies" >> governed by observer-dependent probabilistic chances. It also predicts some >> basic phenomena of quantum theory (Bell inequality violation and >> no-signalling) and suggests a novel "algorithmic" perspective on the >> foundations of quantum mechanics." >> >> https://arxiv.org/abs/1712.01826 >> > -- 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/df7ecf6a-c9af-453e-9aca-6c0e76de7834%40googlegroups.com.
