Mechanism of feline gravitational-mass manipulation

Ascertain the physical mechanism by which cats manipulate their passive gravitational mass.

Background

After constructing classical (Newtonian and relativistic) models that accommodate mass modulation, the paper explicitly acknowledges that the underlying mechanism remains unresolved. It then proposes a quantum-theoretic avenue inspired by neutrino flavor–mass mixing, positing feline states (cheshire, standard, fat) and a mixing matrix that couples to a scalar field, potentially explaining mass-state transitions without changing inertial mass.

Resolving this question would clarify whether a quantum mixing mechanism, scalar coupling, or an alternative process accounts for the observed equivalence-principle-violating behavior, and would inform how to model the cat stress-energy tensor, including possible antisymmetric (spin) contributions.