Outside the universe.

"A visualization of a 3-torus model of space, where our observable Universe could be just a small portion of the overall structure. Similar to imagining our Universe (or any three-dimensional space) being enclosed by a two-dimensional boundary, our three-dimensional space may in fact be the boundary around a higher-dimensional space that better represents our "true" underlying reality. Although there are constraints on the properties and number of such extra dimensions, the possibility cannot be ruled out. However, the lack of repeating structures and the spatial flatness of the Universe tells us important information about how much larger than the visible part of the Universe, at least, the unobservable Universe must be." (Big Think, Is the Universe truly infinite in size?)

Is the universe infinite? This is an interesting question. And if we want to get an answer, we should define the universe. Or should we define what the universe means? Should that term mean the matter inside the structure where we live? Or should we include space outside this structure in this definition? When we define the universe as the structure in which we live. We should define the limit of the universe as the border of matter as we know it. There is something behind the universe. And that something is at least great nothing. Or there could be other universes. The great nothing should involve some very weak quantum fields. 

But the thing that makes great nothing, or great emptiness, the area that we cannot observe, is its energy level. The energy level outside the universe is lower than inside it. And that’s why all energy from the universe travels to that great nothing. Because energy flow is one way. And there is no reflection. Or, there is no reflection. That energy level rises so high. It can reach the universe’s energy minimum. 

We cannot get any signals from that area. Actually, the reflected energy level should rise above the energy minimum. That energy, or wave movement, can penetrate the universe. Otherwise, energy from the universe turns it back. When. A particle goes into that great nothing. It. Expands and loses its form as matter. First, atoms lose their electrons because there is no resistance or quantum back pressure. That keeps them around the atom. The situation is similar. To the situation, we take a balloon into a vacuum. That balloon expands and detonates.  The particle’s shell is like a whisk. 

“The Bubble Nebula (NGC 7635), imaged by the Hubble Space Telescope, is seven light years across” (Wikipedia, Stellar-wind bubble). Maybe galaxies are surrounded by that kind of bubble. And if a similar bubble surrounds the universe. That partially proves the multiverse theory. 

Because that bubble requires the impact wave from radiation. And particles that come from other universes outside our universe. Or what comes from sources outside the universe. The problem is this. There could not be any other objects. Than. Other universes. Things like stars and planets will be erased immediately. Gravity keeps our universe in its form. But the great nothing pulls it larger and larger. This causes a situation. Their energy level decreases, and entropy (disorder) rises. 

“An annotated illustration of the interstellar medium on a logarithmic scale. The solar gravity lens marks the point where a conceptual spacecraft in interstellar space could use our sun as a gigantic lens, allowing zoomed-in close-ups of planets orbiting other stars.” (Wikipedia, Heliosphere)

“This image shows the wind from the star LL Orionis generating a bow shock (the bright arc) as it collides with material in the surrounding Orion Nebula.” (Wikipedia, Stellar Wind)

When that shell expands, those strings form this structure. They cannot keep their form. Or, otherwise, in the case of hadrons and baryons. Those particles. They cannot keep quarks inside them. 

In that expansion. Hadrons like protons and neutrons expand. The quarks will go too far apart. And strong nuclear interaction cannot bind them together. The strong nuclear interaction forms in the strings; there, gluons. Bosons. That transport the strong nuclear force. Travel between quarks. And the quantum field that holds those quarks inside the structure that we call protons and neutrons. If. That field or shell turns large enough. That thing cannot bind quarks. 

Outside those particles, the existence of quarks as particles. Is very short.  This means that the great nothing. It erases matter immediately. So, that is the great quantum eraser. It doesn’t cause matter to vanish. It just turns it into a wave movement. And that is the idea of quantum erasing. It only turns matter into energy. 

The great nothing. It pulls the universe larger and larger. That causes material evaporation. This expansion raises entropy. And that free energy- entropy- destroys the universe. That is one model of the universe. The limit of the universe is the limit of matter as we know it. But there is one “but”. This means that there is no impact wave between the universe and the great nothing. If. There is a structure at the edge of the universe.

Their energy level goes low. And then rises again. That means. There is some impact wave. An impact wave requires resistance. This is the reason. Why. A stellar wind bubble surrounds every star. The heliopause is the point. There, the solar wind that comes from the star Impacts. The interstellar plasma flow. Called: stellar wind. The Voyager spacecraft observations support this model. And observatories detected those impact waves around other stars. If. We continue to expand this model. The galaxies should have similar structures around them. So, we could call those structures the “Galactopause”

 That should form the standing wave that surrounds every single star. There are also similar impact areas around galaxies and galactic clusters. If. There is a similar impact area around the universe. That means. There is something that resists the plasma flow. And if that impact area is found. That supports the multiverse theory. The cosmic flow also supports this model. 

Because. The gravitational effect of that cold plasma wave causes a situation. Where. Galaxy clusters seem to travel in one direction around the same mass center. And if we can prove dark flow. “In astrophysics, dark flow is a controversial hypothesis to explain certain non-random measurements of the peculiar velocity of galaxy clusters. The actual measured velocity is the sum of the velocity predicted by Hubble's law.”(Wikipedia, Dark Flow)

“Plus a possible small velocity move. Into a common direction. Very large-scale correlated flow, called bulk flow, is proposed in this model to be related to certain models of inflationary cosmology.” (Wikipedia, Dark Flow)

That could help. To prove the existence of that plasma shockwave that surrounds the entire universe. That shockwave can form only in certain cases. There is something that resists the plasma flow. 

https://bigthink.com/starts-with-a-bang/universe-infinite/

https://en.wikipedia.org/wiki/Dark_flow

https://en.wikipedia.org/wiki/Hadron

https://en.wikipedia.org/wiki/Heliosphere

https://en.wikipedia.org/wiki/Multiverse

https://en.wikipedia.org/wiki/Stellar_wind

https://en.wikipedia.org/wiki/Stellar-wind_bubble