What if dark energy has not existed? What is the alternative explanation for the mysterious force that rips the universe to pieces?

Are tachyons the transportation particles of dark energy? If that thing is a real thing. The hypothetical tachyons are quite similar particles with neutrinos. 

When we are thinking about the mysterious force which rips the universe. We might think of the possibility that dark energy does not exist. So what is the alternative explanation for dark energy? 

There is the possibility that dark energy is the gravity effect that comes outside the universe. So are tachyons the particles that are transporting dark energy? The problem is that tachyons are purely hypothetical particles. 

1) Is the expansion caused by the gravity effect of other universes. That requires the existence of other universes. That means that if the multiverse theory is true, that thing will explain dark energy. 

2) The dark energy would be a gravitational effect. That comes from the dark matter clouds. Which are traveling at the front of the visible material. And pull the material behind it. 

3) Dark matter is tachyons. That means the hypothetical faster-than-light particles would form the dark matter and acting the same time as the transporter particles of the dark energy. The reason because hypothetical tachyons can travel faster than light is. 

That those tachyons were released during the Big Bang before other particles. Because tachyons were released to space where there were not even quantum fields, those particles will travel faster than the speed of light before the edge of the universe. In that place, there are no quantum fields that can slow the particles. 

Was dark energy exists before Big Bang? The answer is yes and no. The cat died and the cat is living, if we are comparing this question to Scrödinger's cat. Before material started to form, there was released wave movement. Because there was nothing that can slow the particles they are traveling faster than photons in space, which was empty. The thing that limits the speed of light in the universe is probably the quantum fields, which are filling the bubble, that we are calling the "Visible Universe"

The question is what causes the mysterious expansion of the Universe, what continues a long time after the Big Bang? Or what is dark energy anyway? Theories say that dark energy is the wave movement between dark matter particles and that's what people say it is. So where the dark energy is hiding? 

And why it is not able to interact with particles of the visible universe? So the dark energy would be the wave movement between particles whose size is different from the visible material that the invisible radiation would not interact with the particles of the visible material.

So if dark matter is the source of dark energy that thing means that there could be two types of dark energy. 

1) The hot dark matter sends the hot dark energy. The hot dark energy would be an extremely high-energy electromagnetic radiation. That means the hot dark energy would be the ultimate form of the gamma-rays. Gamma and X-rays can travel through walls. And d that means the energy level of hot dark energy is something, that is outside even the energy level of gamma-rays.

2)The cold Dark matter sends extremely low energetic radiation that has similar abilities with the radio waves. So that means the cold dark energy is some kind of radio wave. But that radiation is outside the radio waves and that means it's unable to detect. 

This theory requires that there are two types of dark matter. And there are no observations about dark matter. The loss of interaction is causing the discussion is dark matter exists or not.

When we are thinking about the physical dilemma: does the chair exists if we cannot see it? Rational physics says that the chair is not existing, because we cannot see or touch it. The same way we can ask does things that cannot interact with us existing. We might say "no". But then we must say that those things are still in there. Existence doesn't require interaction. 

So if we are following the principle of inaccuracy we might say that there are certain rooms where are chairs on the Earth. We might not see those chairs and rooms when we are looking outside. But we are quite sure that on the Earth is room, where is chair. And the principle of inaccuracy means that there is a possibility. That there is a cleaning day on the entire Earth and all chairs are moved outside. And if we are in the forest and there are no other houses visible there is the possibility that we just don't know about the cleaning day. So the cat is life and death at the same time. 

When we are comparing dark matter with Schrödinger's cat we might see its effects. We see footsteps, hearing voices, and see things like marks of caught mice. Those marks are proving that the cat is life. But without seeing the cat itself we cannot see that cat is existing and living. So if dark matter is Schrödinger's cat we can make the next conclusion. 

If dark matter is existing, the cat is living. If dark matter does not exist cat is dead. Dark matter interacts with the visible material through gravity. So there are markings that dark matter exists. 

But without seeing that thing, we cannot confirm it. We know that there is an effect that is caused by something. But we cannot be sure, what causes that effect.  Like grey hair is proving that something caught the mice. But we cannot confirm is it a cat? O is it Scrödinger's cat? So is the cat dead or is it living? We cannot even be sure, that the grey hair is coming from the mice. In the case where we cannot see that there is the cat, what hunts the mice we actually cannot be sure is there some kind of cat. And are those grey hairs coming from mice anyway? 

()https://en.wikipedia.org/wiki/Dark_energy

()https://en.wikipedia.org/wiki/Dark_matter

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

()https://en.wikipedia.org/wiki/Neutrino

()https://en.wikipedia.org/wiki/Schr%C3%B6dinger%27s_cat

()https://en.wikipedia.org/wiki/Tachyon