  We argue that neutrino oscillations at JUNO offer a unique opportunity to
study Sorkin's triple-path interference, which is predicted to be zero in
canonical quantum mechanics by virtue of the Born rule. In particular, we
compute the expected bounds on triple-path interference at JUNO and demonstrate
that they are comparable to those already available from electromagnetic
probes. Furthermore, the neutrino probe of the Born rule is much more direct
due to an intrinsic independence from any boundary conditions, whereas such
dependence on boundary conditions is always present in the case of
electromagnetic probes. Thus, neutrino oscillations present an ideal probe of
this aspect of the foundations of quantum mechanics.
