 The Frauchiger-Renner thought-experiment (Frauchiger &amp; Renner 2018) can be viewed as an indirect support to RQM, since it makes concrete the idea that “different observers can give different accounts of the same set of events”, as in the original RQM slogan (Rovelli 1996: 1463). The experiment is discussed in the conceptual framework of RQM by Waaijer and van Neerven (2019  [OIR]).