Dark Matter and Nature of Gravitational Fields And Spacetime

The following are my comments recently published at:
http://scienceblogs.com/startswithabang/2017/10/10/missing-matter-found-but-doesnt-dent-dark-matter-synopsis/

“Neutral atoms formed when the Universe was a mere 380,000 years old; after hundreds of millions of years, the hot, ultraviolet light from those early stars hits those intergalactic atoms. When it does, those photons get absorbed, kicking the electrons out of their atoms entirely, and creating an intergalactic plasma: the warm-hot intergalactic medium (WHIM).”
So the UV light from earliest stars keeping the intergalactic gas hot (and does it perfectly for all gas atoms somehow).
But how it is possible that UV light photons stayed same after billions of years of expansion of universe?
I have a really crazy idea on this WHIM which maybe a better explanation though:
What if WHIM is no ordinary gas?
What if WHIM is an effect similar to Hawking Radiation?

What if spacetime is created by virtual particles as an emergent property? What if Gravitational Fields are polarization of spacetime? (Where positive curvature indicates probabilities of positive energy/mass virtual particles are higher in that region and negative curvature indicates probabilities of negative energy/mass virtual particles are higher in that region.)

In case of WHIM, imagine Dark Matter particles increase probabilities of positive energy/mass virtual particles and we observe it as hot gas.

Imagine any (+/-) unbalanced probabilities for virtual particles, on the path of light rays, act like different gas mediums that change the local refractive index, so the light rays bend.

And in case of BHs, imagine probabilities of positive energy/mass virtual particles increase so much nearby, some of those particles turn real, that we could observe as Hawking Radiation.

I just realized if my ideas about true nature of spacetime and gravitational fields (stated above) are correct then it would mean Casimir Force actually can be thought as creating artificial gravity, like in Star Trek for example.

I am guessing if positive spacetime curvature slows down time then negative should speed it up. Then if Casimir Force is creating spacetime curvature, and since we can make it negative in the lab, then we can make time move faster, and it maybe measurable in the lab.

I wonder if we could use sheets of Graphene like Casimir Plates and stack them as countless layers to create a multiplied Casimir Force generator. Then we could also add a strong electric and/or magnetic field to amplify that force. Would a device like that could create human weight level strong artificial gravity field?

Imagine you made bricks of artificial gravity generators.
Imagine a spaceship (or spacestation) with a single floor of those bricks. Imagine the crew walks on top and bottom of that single floor (upside-down to each other). So you have a kind of symmetric (up-down) 2 floor internal spaceship design.

Also what if those brick can also create artificial anti-gravity?
(Wikipedia says we can generate both attracting or repelling Casimir Force.) If that is possible, imagine each floor of spaceship is 2 layer of bricks. Top layer generates gravity, bottom layer generates anti-gravity. People on top feels downward force of gravity but people on the lower floor does not feel upward force of gravity, because the anti-gravity layer (which they are closest) cancels out total gravity to zero for them.

I wonder what would happen if we somehow created artificial gravity in front of a spaceship and artificial anti gravity in the back? Could that cause the spaceship to move forward faster and faster, like keep falling in a gravity well?

If we can create artificial anti-gravity, I think it could be also useful as a shield in space, against space dust etc.

What if Planck particle is the smallest and Dark Matter particle is the biggest size/energy particle of the Universe?

Unpublished additional comments:

If we can create positive and negative artificial gravity (using Casimir Force), and put them side by side to create movement, then what if we do it with a rotor of an electricity generator? (+- Casimir Force could be generated using multiple layers of Graphene sheets as Casimir Plates, and maybe amplified with a max strong permanent magnet.) And if that worked, would it mean creating free energy from spacetime itself (Zero-Point Energy)?