Actually, if you think of even cosmological Black Holes could be regarded as superluminal phenomena in nature.

What does it mean, "gravity is so strong that not even light can escape from a BH..."?

This can physically interpreted that beyond the event horizon of the BH, light is phase transitioned (accelerated) to a FTL superluminal energy that breaks known physics. The inner of the BH therefore appears in our spacetime as "Nothing"! Exactly as the rest of vacuum space appears to us, basically as nothing.

Someone could therefore infer that vacuum space we generally describe us nothing is actually something and considering the physics of BHs it points to the possibility that vacuum space could be a superluminal FTL unknown type of energy.

There is light, matter and vacuum in our universe. Seems to me that vacuum could be a different energy than matter and light, defying our known physics which we mastered over millennia and concern more about matter and light and their interactions.

The vacuum is still a mystery today. Much to learn in the future.

Maybe sci-fi Star Wars creators imagination was right after all when saying "...prepare for a jump to hyperspace!".

https://www.youtube.com/watch?v=hB6-pNGfL3U

New Publication "The superluminous vacuum" why the vacuum appears as nothing:

Article The superluminous vacuum

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