The document describes the evolution of the universe from the Big Bang to the present day in three main epochs: the photon epoch, where photons took over the mass of the universe around 380,000 years after the Big Bang; the lepton epoch, where leptons took over the mass around 1 second after the Big Bang; and the quark epoch, where gravitation and electromagnetism began to take form around 10-10 seconds after the Big Bang. It outlines how the early universe transitioned from a high pressure, high density singularity at the moment of the Big Bang to forming the first light elements like hydrogen and helium and eventually galaxies and stars over billions of years as it expanded and cooled.

1. Larger
Universe
3K
Present (And Beyond)
5bil yrs
Light elements (H,
He, Li) begin forming
into stars.
Galaxies and Stars are formed
Billion Years
Temperature cools, photons
no longer interact with matter,
universe is now transparent.
Universe is transparent
First elements form.
Photons, a type of elementary
1013 sec
(380,000 years)
subatomic particle, take over the
mass of the universe. Photon Epoch
3000K
100 sec
Leptons, a type of elementary subatomic
particle, take over the mass of the universe. Lepton Epoch Ultra Complex Legend
1 GeV 10-10 sec More
Gravitation and electromagnetism begin radiation, less
Quark Epoch matter
To take their form.
103 GeV 10-34 sec Less radiation,
Energy and matter from the big bang are Grand Unification more matter
out of control and interchangeable. Epoch
1015 GeV 10-43 sec
BIG
A high pressure, high-density singularity 1 GeV
BANG!
explodes, causing it to grow and cool = 10 billion
exponentially. 1019 GeV Smaller Universe kelvins