Nothingness

[little_monkey]

NOTHINGNESS is an identity just like SPACE is an identity. However, to what this NOTHINGNESS is pointing. If this NOTHINGNESS has existence, at least in form of word/language, it should points to something or some idea. Would you like to put some light over NOTHINGNESS. This is an interesting point that I am keen to learn from you. You are an atheist who doesn’t believe in the existence of God. In your opinion, what can be the substitution of God? If there is no God then there should be NOTHINGNESS. So what do you think of this NOTHINGNESS?

I understand you are talking from a philosophy POV. I'm no philosopher. I can only give you a physicist POV. So bear with me.

Now, you are comparing nothingness with space. In GR, that would be incorrect. In relativistic classical physics, time is another dimension with space, why we use space-time (sometimes without a hypen), and space-time can have dynamical properties. That means it does interact with matter/energy.

Secondly, if you mean nothingness is vacuum energy, then it is something. So continuing in labelling it as "nothingness" will bring confusion.

You are also asking, Is there a substitution for God? I'm not sure if I understand your question. For instance, why would there be a necessity for a substitution? It could be that the universe always existed, and what we are witnessing is its present state. At some earlier times, it might have been in a completely different state, and our job is to find that out. And so you have many theories on the market trying to answer that - cyclic theories, multiverse theories, fecund theories, conformal theories, to name a few. Which one will prevail, only time will tell as we will require new discoveries to filter out the incorrect ones.

At present, the Big Bang Theory is the prevailing paradigm. But it has deficiencies, the primary one being that it has a singularity. A singularity is a mathematical entity, not a real one. If it is present in a theory, it's a red flag that either the theory is not applied correctly, or it is invalid at a certain scale. In the case of the BBT, we think that we need a new theory that will combine Relativity with Quantum Mechanics, as none of them can deal with the Planck scale. And so this is another thing that physicists are trying to work out.