Adrian Buck’s Reviews > What is Real?: The Unfinished Quest for the Meaning of Quantum Physics > Status Update

Bell's theorem proves [all solutions to the measurement problem] have to be weird...[But] there's a difference between being weird and being incoherent or unintelligible"

Once you give up Copenhagen, "there's more than one option on the table ....then how do you decide?...Is it because you have certain prejudices about what's interesting and what's not interesting?"

For Einstein and Bohr's generation, philosophy was part of the core educational curriculum in central Europe.

"the distinction between reality and our knowledge of reality, between reality and information, cannot be made" - isn't this what experiment is all about?

But as the saga of Neptune and Vulcan shows, it is far from obvious when a theory should be discarded in light of conflicting evidence, rather than rejecting some other assumption used in making the prediction.

"WMAP's data supports the notion that galaxies are nothing buy quantum mechanics writ large across the sky." - there is no 'classical world' which the "quantum world' turns into at some scale, the universe is entirely described by quantum mechanics.

But the rise of cosmology made the inadequacy of the Copenhagen interpretation more acute. How can you draw a line between the observer and the observed system, as Bohr had required, when the system in question is the entire universe?

"But the wave function never collapses, and the different branches of the universe are extraordinarily unlikely to interact." - but it's not impossible that differents branches could interact...and what happens to the conservation laws when the universe branches?.

So physics trudged along, not knowing that a major revolution had happened in an adjacent field.

"It is theory, and thus science itself, which tells us what is or is not ... observable"