How is this possible?

[The Architect Of Fate]

The truth is, that no one can ever know exactly what the deal is....

Assertion

In order for light to exist, there must be a cause...........you know, cause and effect.  So it stands to reason, that the universe, would in fact be larger than the distance that light would have travelled in the same time, because it came into existence after, long after.

Assertions 

You cant get something from nothing right?

as in the first law of thermodynamics: also known as the law of conservation of energy, states that energy can neither be created nor destroyed, but it can be changed from one form to another.

Which only applies to a universe that already exists with laws.

So, with that in mind, "stuff came first" (cause) then light (effect).  Interesting concept, that is backed up by all the laws of physics, especially thermodynamics

Again the laws are conditional and there is no reason to apply cause and effect to the start of the universe. 

How did these hut dwelling individuals know that "stuff" came first, and light came after?  When did they know it?  Well the book is older than all of us, especially modern science, so I will let you decide that.

Do you mean people had a concept that stuff came from other stuff? Yeah, that needs magic to explain it. (it's also unsupported) And light is significant in various religions so there is nothing special about the bible in that regard.

Was it just a good guess?

It was then that I found out many other truths in science that PROVE the existence of GOD.  And now I understand it to be no other way.

For what its worth, there was a big bang.

There is not a single shred of proof for any god ....period