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More calculations on a white board. Photon crashed photon = mass. I'm not buying it. Has anyone ever proven that dark matter exists other than in math calculations? What about dark energy? Also, hasn't some holes been proven in Einstein's E=MC squared or was it general relativity?

While many math equations have been proven correct, others have been proven incorrect. There is a reason theoretical physics is call theory.

Also, I don't understand the latest theory of what gravity is. Can someone explain it in layman terms?

Then you have the basketball size singularity that caused the big bang. Yes, I get the reverse math of the known universe expanding according to red shift. How and why did the super-heated basketball appear with only 2 elements?

The case for the existence of dark matter relies on a wealth of observations that indicate the visible universe shows more gravitational force at work than can be accounted for by known forms of matter. So far, more than a century after the issue was first identified, the dark matter problem remains. Suggestions that our observational data or understanding of gravity are wrong have so far not been validated.

Dark energy gets at a different problem raised by our observations of the universe. On the cosmic scale, there seems to be extra energy that is counteracting gravity, with the universe expanding more and faster than we can otherwise explain.

There are many new theories that try to explain gravity but none have gained general acceptance. Newton's characterization of gravity as a force of unexplained origin remains the practical benchmark. Thus we can explain fairly well how gravity works but not how and why it exists. Crucially, we cannot yet mesh gravity and relativity with quantum mechanics.

As for the existence of the universe itself, a new trend is trying to develop a theory that mathematically explains consciousness and unifies it with matter. Some physicists are embracing the point that quantum mechanics is so intertwined with consciousness that, in terms of philosophy, modern physics regards matter as pan-psychic.

Remarkably, Edgar Allen Poe wrote and published an essay that projected as much and that the universe began in a single moment of creation, with consciousness existing before matter. Poe's writing helped inspire the physicists who first developed the big bang theory.

With dramatic popular accounts discarded, physicists see the big bang as not so much a massive explosion but as more like a balloon rapidly expanding into utter nothingness. And if Judaism and Christianity are correct, all matter arose from the consciousness of a Creator. Nowadays physicists seem less and less inclined to insist otherwise.