...which brings us to the Big Bang,
the widely-held concept
that the universe is expanding 
and was once denser and hotter.
It's nothing to do with the end of the world!
We owe the Big Bang concept
to Alexander Friedmann
who proposed it in 1922, five years
before Lemaître.
Our interest in the Big Bang
is baryogenesis.
This is particle physics, which rests
on the basic notion, confirmed by experiments,
that diverse elementary particles 
and their fundamental interactions
are merely different aspects 
of more elementary entities.
For example, electromagnetism and weak nuclear force
can be described as two different aspects 
of a single interaction:
electroweak interaction...
SHUT UP!
This film is dedicated to those 
who have dreamed it
