Theory.. Just theory?

I would like to know what do you think about these two theories in physic.

If time is constance, then two phenomena could be observed.

One is called linearization. It consists of cause, process, effect, aged and break down.
For example, a linearization manner of universe. There is a cause and it will break down overtime. If you take the energy of all linearized processed divided to the time, the ratio will always zero. Because the time is in increase manner.
For example, a linearized manner of our universe, the current effect is proceeding (expanding) and big bang is the beginning.
Big-bang ---> universe

Another theory is called circulation. It has one major process, but the process is circulated over time and is in steady-stage. Its sub-circulated processes are all linearized form. The ratio is always 1 if you take the energy of all linearized processes from the circulated process divides the time.
For example, a circulation manner of energy. There is no beginning but circulation, it is kind of like the 1st law of thermodynamics if you ask me.

Now, I would say there is no beginning relatively speaking. I would argue that big-bang and universe is in circulated manner.

Big-bang <---->Universe.

It means, the universe can expand and contract ( in one process), the expanded energy divide by the time equal the contracted energy divide by the time. The ratio is 1.

How do I know? It is just my theory.

So.. My point here is that everyone can create their own theory, however a accepted theory which everyone (I would say less than 60%) agrees with is very difficult. Nonetheless, It does not suggest that it is impossible.

Unassailable theory takes science, time and effort. Specious theory takes assumption and belief.

Which one is untenable? Ask science.