In an "extended model" which includes hot dark matter in the form of neutrinos, then the "physical baryon density" Ω Ω b h 2 is estimated at 0.023. (This is different from the 'baryon density' Ω Ω b expressed as a fraction of the total matter/energy density, which is about 0.046.) The corresponding cold dark matter density Ω Ω c h 2 is about 0.11, and the corresponding neutrino density Ω Ω v h 2 is estimated to be less than 0.0062.