Interesting stuff. Not sure how accessible you wanted this post to be. It rather illustrates how hard it is for anyone, including “In Our Time”, to cover the topic without much compromise but with it still widely accessible. QM really challenges the mind. The core issue for me is: QM gives us equations to make predictions to an unprecedented degree. BUT we've been pandered to in our expectation that such theories should allow us to comprehend how the world works above and beyond being able to predict it, and alas QM doesn't play easily on that score. Either we've reached a level where our intuition needs tuning so break the need to go beyond predictive power (try How The Laws of Physics Lie if you want to see what it's like to wear that hat), or the "meaning" of the theory beyond prediction power is not yet widely understood, or the theory is broken (as all have been in the past) and moreover it's replacement will not be so broken.