“…One of the strengths of principle-theoretic approaches to physics is that they give us insight into the multi-faceted nature of the objects of a theory. 80 A formal framework is set up, for example the C * -algebraic framework of Clifton, Bub and Halvorson (2003), one of the minimalist operationalist frameworks of states, transformations and effects dis-cussed in Myrvold (2010), "general probabilistic" frameworks (Koberinski and Müller, 2018), "informational" and/or "computational" frameworks (Chiribella and Ebler, 2019), "operator tensor" formulations (Hardy, 2012) and so on. 81 Each such framework focuses on a particular aspect of quantum phenomena, for example on distant quantum correlations, quantum measurement statistics, quantum dynamics and so on.…”