  According to Relational Quantum Mechanics (RQM) the wave function $\psi$ is
considered neither a concrete physical item evolving in spacetime, nor an
object representing the absolute state of a certain quantum system. In this
interpretative framework, $\psi$ is defined as a computational device encoding
observers' information; hence, RQM offers a somewhat epistemic view of the wave
function. This perspective seems to be at odds with the PBR theorem, a formal
result excluding that wave functions represent knowledge of an underlying
reality described by some ontic state. In this paper we argue that RQM is not
affected by the conclusions of PBR's argument; consequently, the alleged
inconsistency can be dissolved. To do that, we will thoroughly discuss the very
foundations of the PBR theorem, i.e. Harrigan and Spekkens' categorization of
ontological models, showing that their implicit assumptions about the nature of
the ontic state are incompatible with the main tenets of RQM. Then, we will ask
whether it is possible to derive a relational PBR-type result, answering in the
negative. This conclusion shows some limitations of this theorem not yet
discussed in the literature.
