I
think Brian Cox did an excellent job of explaining astrophysics in a way
accessible to a very wide range of people. In a nutshell the beginning
of time and space is a singularity at which extremely large quantities
of energy are in the same infinitesimal space which reaches a critical
mass for an explosion like the big bang our own universe began in. The
energy is blasted into the space / time
matrix created at the explosion. After that energy coalesces and
sometimes gathers enough mass to form a star, sometimes just enough for
dust, asteroids and planets or giant clouds.
The end, Brian
argues, is the gradual decay of mass into pure quanta of energy that
spread themselves out into a huge uniform space. Brian considers this a
necessary consequence of the law of entropy which postulates that all
energy has a built in tendency to disorganize the total energy by ending
as evenly spread low level heat.
A couple of questions remain in my mind.
Why did the energy gather at the singularity?
Why is it inevitable that energy will eventually be uniformly distributed?
The last thought is that maximum entropy is actually ordered in the
sense that the energy is uniform and spread out in a time / space
matrix. I think that is is not an entropy maximum since it is ordered
and moving any one energy quantum would render the end state more
disordered. Perhaps the answer is that energy rather stays clumpy but
speed away from all other clumps forming a fractal pattern that is
unchanging because no clump has any means of disordering any other.
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