Critical points with time running forward
10-45 sec       Quantum gravity?  Physics not understood
10-34 sec   1026 K     Nuclear strong force/electro weak force separate
         (inflation, matter/antimatter asymmetry)
  10-7 sec   1014 K     Protons, Antiprotonsphotons
  10-4 sec   1012 K     Number of protons frozen
    4   sec            1010 K                     Number of electrons frozen
    2   min        Deuterium nuclei begins to survive
    3   min   109  K     Helium nuclei begin to survive
  30   min           108  K                     T, too low for more nuclear reactions
         (frozen number of D, He -- critical prediction)
300,000 yr   104  K     Neutral H atoms begin to survive
         (frozen number of photons – critical prediction)
 1 billion yr       Galaxies begin to form
13 billion yr       Present time