If you have seen interesting recent research papers on foundations/interpretation of these branches of physics, please share your links and thoughts. Argument along ontic versus epistemic lines is not approved--it is frequently a waste of time. So if you please use a separate thread if your views are ontic. For a simple explanation of the difference, google "Mermin pirsa". You get a 45 minute video lecture "Confusing Ontic and Epistemic Causes Trouble in Classical Physics Too" And the summary which you can read immediately without watching the talk says: " A central issue is whether quantum states describe reality (the ontic view) or an agent's knowledge of reality (the epistemic view)." The title of that video talk is a reminder that "QM interpretation" is only part of a tangle of foundational puzzles involving GR, Statistical Mechanics, Thermodynamics as well. In other words foundational confusion can cause trouble in CLASSICAL branches as well as quantum. I would like to know what other people have learned about this nexus of problems. If you want a paper that is easy to read and quickly covers the material of that video, google "Mermin problem of the now". This defines a conceptual problem common to a lot of physics, notably (but not exclusively) classical. You might be interested in how Mermin resolves it. That is a December 2013 paper---we're especially interested in recent work in this thread. I want to mention some foundations connections between GR, StatMech, Thermodynamics, but will make a separate post of that so this one doesn't get too long.