In an earthly hologram, the interference pattern does not look like a photograph until light hits it in the correct position. In a cosmic hologram, the interference pattern would merely be a dark cosmos evolving from a big bang until it was illuminated by another laser beam (from the generation of another big bang - please see the next paragraph). Then it would become a number of "images" including every possible frequency of electromagnetism, and thanks to wave/particle duality, matter waves and gravitational waves.
Expansion must initially be of an exponential, inflationary velocity because this reaction is in response to the action of light´s velocity (the greatest in the universe). Then matter formed and gravity slowed expansion of the universe. If our civilization oneday becomes advanced (and wise) enough to create the big bang that produces our universe, it is inevitable that we would continue to use this talent for making cosmic fireworks, and that other civilizations would also produce big bangs. In December 1979, the American physicist Alan Guth came up with the idea of an inflationary universe in which the universe (local, not mega-, according to this book) initially expanded much faster than it does today. He speculates that the artificial creation of a black hole through application of advanced technology could create another universe and once said, “For all we know, our own universe may have started in someone’s basement.” I cannot provide direct proof that ideas of creating universes and regions of space-time are correct. I can only point out that universal expansion would once more accelerate after gravity slowed it if more big- bang-generating