Initial singularity

In the beginning an event occurred. The first event. The singularity. A single solitary self-replicating event that was the totality of our universe.

This event caused other events to happen which in turn caused still more events to happen. Eventually there was a vast sea of events causing and being caused and interacting with one another. (To interact with another event an event must be able to "see" the other event.)

Our universe has just the right balance of chaos and order to make life possible. Too much order and the universe would be frozen and unchanging. Too much chaos and life would be burned up.

It is entirely conceivable that the first singularity of our universe was in reality just a single event in an earlier universe of total Chaos. A Chaos so total that life was not possible. It is possible that this earlier Universe separated into regions that were dark and frozen and regions there were light and chaotic and that our universe formed at, what was at that time, the boundary between these two regions.

Volume of the universe
Assuming that the universe is 1 trillion light years in radius and 100 angstroms in thickness then the volume of the universe is the same as a four dimensional sphere 1,434 light years in radius.

A three dimensional sphere with a radius of 1434 light years and a density 1 g/cm3 would have a surface gravity of 387 billion g's.

Water has a density of 560,000,000 eV/Å3

A three dimensional sphere with a radius of 1434 light years and a density of would have a surface gravity of 387 g's.

The pressure at the center would be 257 billion bars which is about the same as the pressure at the center of the sun.

An object falling from the surface to the center would accelerate to 757c