A perspective

 From a physics perspective, the universe is expanding. Therefore, if we go backwards, the universe contracts until we reach the beginning point where the entire universe was packed into a space smaller than a proton. That was the beginning, and suddenly, for some reason, the components of the universe began to expand, which is the observed birth of the universe where time and space began to emerge after everything was just mass, energy, and charge crowded together in a dense zero-point. But what caused the components of the universe to expand and come out of the zero-point and continue to expand until now in this huge way? Simply put, there are only two possibilities: the first is the state of absolute regularity and extreme density, and the second possibility is the state of scattering and chaotic disorder. Since the probability of disorderly arrangement is always greater, the universe began to expand automatically, moving from the highly regular zero-state to the more likely state. However, this does not mean that the possibility of regularity remains non-existent, but it is present to a lesser extent, which caused other mass and energy accumulations to form, resulting in the appearance of stars. But again, due to the increasing probability of chaos, all forms of energy gradually transform into heat.