You say that no-one knows what happens at a sub-atomic level.....
...and then go on to say that you actually do know what happens between the gaps, which is that they get filled by 'smaller particles and energy'.
How do you know this? Some might point to this as another obvious contradiction in your thinking.
Then, you go on to say that, not only do you know what happens to something no-one can see, you also know how it happens:
You do the same thing again here:
How do you know this?
This what I do know Cosmic Yak:
What to us appears as a distance of a foot, a yard or a meter, can be divided infinitely into units. I know for sure that I am observing the observable reality and based on my observations I form patterns and attempt to imagine what is beyond the observable reality. I attempt to comprehend and further conceive the objective reality, realising that the whole "actual" reality will never be fully understood by a finite intelligence.
I realize that what I view as reality is in fact comprised of particles forming and deforming. Now I reach a point which leaves me with a single choice: Either "Nothing", or "Something" comprised the building blocks/ the forming particles of everything. I choose "something" because based on the patterns I formed from observing my observable reality, and realizing the particles that have actually formed it; I conclude that something cannot derive from nothing and if I have something, which we do, it can only derive from an infinite chain of formation-deformation and action-reaction. I also conclude that there cannot be any such thing as actual "nothing", because then we would not have the infinite formation - deformation, action-reaction phenomenon; because such a phenomenon would have to apply in all cases and aspects of formation-deformation. If there were gaps within the Infinite; there would need to be points/areas of beginning and areas of ending. Everything has to be formed from something else and be deformed/dissolved into something else; be disposed of somewhere. Which leads me to the conclusion, that nothing and the zero that symbolizes it, are the point/stage as far into the microcosm, as we can actually observe or imagine; the negative can also denote the point within the microcosm beyond what we cannot yet observe or imagine (depending on the range of observation set; we can say either that we are approaching a zero infinitely or negative infinity beyond that zero, since zero as I said before does not actually exist). At the end I reach the only conclusion that is available; there are no gaps, but Matter, Energy and yes Intelligence interchange forms extending infinitely within the microcosm and the macrocosm from every perspective. How do I know that? The other alternative of the existence of a "nothing" out of which something came to be, does not make sense because it is contradicted, defied and therefore debunked by any observable pattern within both our objective and subjective reality.
The Infinite is not a set. The Infinite has no size. There is no distance, no time, no movement, no dimensions and no gaps for the Infinite. The Infinite does not "exist" and it does "exist"; since existence is a set within the Infinite, and since the Infinite is not a set or a unit - it had no beginning and will never have any end, gaps or ending points. The Infinite is the "1" the (-), the (+), the (0) and the whole, the "everything" and the "nothing" all at any given, same, infinite minute instance. Energy, intelligence and matter are infinite; and the Infinite is all Energy, all Intelligence and all Matter.
Please directly answer Cosmic Yak's question.
This is the most direct answer I can give as a finite being, of a finite intelligence, on the subject of the Infinite.
I guess the choice is really whether it makes more sense to you, to believe that everything we can observe or imagine; came out of an absolute, total, dimensionless, utter nothing; or whether it extends from every perspective both inwards the Microcosm, and outwards the Macrocosm to Infinity.