Bjarne- the Universe is coherent
Things are connected.
You don’t know what dark matter is either what dark energy is.
You also don’t know what a gravity wave really is or even what gravity really is.
How can you lie so much to yourself?
Dark matter has nothing to do with dark energy (one "pulls", the other 'pushes" for a start! )
PAGE 14
Dark Matter and Dark Energy are 2 sides of the same count.
The fact is; that people not understand these phenomena’s because these begins by failing to understand that matter is absorbed space.
Understanding that would immediately open your eyes for the fact that a gravity wave then must be released space, or expanding space is you prefer..
Dark Energy must then be a huge gravity wave.
Something must feed such wave, the only possible thing able to do that must be a huge explosion of matter.
Page 7 in your own textbooks tells you that explosion is Big bang.
And page 11 in the textbox tells you that the only thing strong enough that could have cause such huge gravity / matter bomb is; - speed.
So it is almost all their already RC, in your own textbook.
The only problem is that page 14 is missing, this page is about coherence. And you can see this is page 14.
But I guess if you try to get page 14 into that book, you be “killed” by the huge dark matter and dark energy entertainment industry, and other that make their earning by fooling naive innocent students etc...
No dark matter is not matter, - it
was matter and it is 13,7 billion years
+ 1 split-second ago.
Space does still remember gravity (space density differences) from the previous Universe.
In the same way, - after people have read page 14, a little explosion will happen in the hardcore heavy idea that dark matter really is “matter”.
But even after light had shines through and in fact whipped out the idea that dark matter really is “matter” , the strong impression in the brain and mind will continue to be there and and for (some) people in millions of years, - overshadow - the fact that a opposite process also is going on, - the explosion of that idea.
Therefore it can probably also take billion of years to forget that old hardcore matter fixated brainwashed impression.
But don’t worry, it also takes the Universe billion of yeas to forget how the previous Universe looks was look like, - so you are not alone.
A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it.
Max Planck
! 
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