SM*A*S*H is an extension of the Standard Model of particle physics
which has just the minimal number of fields in order to solve six puzzles
of particle physics and cosmology in one smash:
vacuum stability, inflation, baryon asymmetry, neutrino masses, strong CP, and dark matter.
The parameters of SM*A*S*H are constrained by symmetries and
requirements to solve these puzzles.
This provides various firm predictions for observables which can be confronted with experiments.
We discuss the prospects and timeline to scrutinise or smash SM*A*S*H by cosmic microwave background polarisation experiments,
axion haloscopes, and future space-borne gravitational wave detectors.