  Parity solutions to the strong CP problem are a compelling alternative to
approaches based on Peccei-Quinn symmetry, particularly given the expected
violation of global symmetries in a theory of quantum gravity. The most natural
of these solutions break parity at a low scale, giving rise to a host of
experimentally accessible signals. We assess the status of the simplest
parity-based solution in light of LHC data and flavor constraints, highlighting
the prospects for near-future tests at colliders, tabletop experiments, and
gravitational wave observatories. The origin of parity breaking and associated
gravitational effects play crucial roles, providing new avenues for discovery
through EDMs and gravity waves. These experimental opportunities underline the
promise of generalized parity, rather than Peccei-Quinn symmetry, as a robust
and testable solution to the strong CP problem.
