In the theory of the Big Bang (BB) it is hypothesized that the universe began as being extremely hot (energy?) and when it cooled it formed matter. I say this is hogwash. If it were true then it could be easily reproduced in the lab. Simply create an extremely hot environment in a vacuum then rapidly cool it off to see if it forms matter. It will not.
Then what happened before the BB? I hypothesized that matter, elementary particles were created when energy slows to a stop relative to existing matter or along the leading fronts of EM waves.
Imagine a wave of energy emanating from a star. Because space is empty the energy (thermo radiation, heat) fills the space around the star like a balloon. Each star then becomes the inflation device of the universe.
Imagine energy and matter as one but in different wavelengths. We as humans separated each energy into a spectrum giving names to each wavelength, i.e., thermo energy, sound, ultra sound, radio, microwave, infrared, visible light, UV, x-rays, gamma rays and neutrino rays.
Every star produces energy but in a different wavelength due to the gravity and internal pressure of each star and the distance the energy has traveled.
Matter vibrates in a wave, is the same as energy yet is in a different state so it too should be included in the energy wavelength spectrum.
The photon is the quantum of the electromagnetic interaction and the basic “unit” of light and all other forms of electromagnetic radiation and is also the force carrier for the electromagnetic force.
EM radiation carries energy and momentum which is affected when interacting with matter or another EM field.
As noted with Milagro Observatory when gamma rays interact with protons in the ionosphere producing heavy elements, elementary particles or matter. This means all energy has the canny ability to be converted into matter simply by interaction. See Van Allen Belts where elementary particles, both positive and negative form in the Earth’s magnetosphere. Another effect of wave interaction.