This paper continues the investigations into a simpler standard model last visited in "On Gravitation and Electric Charge". In this study, we find the massive gauge bosons (W, Z) are unnecessary to explain the weak interaction. We conclude there is one massless gauge boson responsible for all particle interactions; the 'photon'. In addition we offer the usual ruminations on aspects of this new standard model important for cosmology and provide an overall summary of our new quantum mechanical theory of gravitational interactions.