  Gravitation and the standard model of particle physics are incorporated
within a single conformal scalar-tensor theory, where the scalar field is
complex. The Higgs field has a dynamical expectation value, as has the Planck
mass, but the relative strengths of the fundamental interactions are unchanged.
Initial cosmic singularity and the horizon problem are avoided, and spatial
flatness is natural. There were no primordial phase transitions; consequently,
no topological defects were produced. Quantum excitations of the dilaton phase
induced a slightly red-tilted spectrum of gaussian and adiabatic scalar
perturbations, but no analogous primordial gravitational waves were generated.
Subsequent cosmological epochs through nucleosynthesis are as in standard
cosmology. A generalized Schwarzschild-de Sitter metric, augmented with a
linear potential term, describes the exterior of stars and galaxies, such that
there is no need for dark matter on galactic scales.
