Because the universe was extremely small at that moment, the quantum effects of gravity were exceptionally pronounced. Its strength was essentially equal to that of the other three forces, rather than being the weakest force as it was now.
At that moment, the Four Fundamental Forces were indistinguishable from one another, so it was also called the Superforce Stage. It was the best cosmic environment for exploring the Theory of Everything. If one could exist in such an environment, or recreate it in a laboratory, then the Theory of Everything could be derived as easily as humanity had discovered the laws of Electromagnetic Force and other physical laws.
The Grand Unification Moment, meanwhile, lasted from 10^-43 seconds to 10^-36 seconds. By then, Gravity had separated from the Superforce, but the other three forces were still indistinguishable.
The moment Gravity separated was the moment of the universe's first phase transition after its birth. The symmetry breaking that determined whether a Positive Matter universe or an Antimatter universe would emerge occurred sometime between those two moments.
Next came the period from 10^-36 seconds to 10^-32 seconds. The universe underwent its second phase transition during this time, when the Strong Force separated from the Grand Unified Force Field.
On the scale of the macroscopic universe, this phase transition manifested as inflation. The inflationary process lasted only 10^-33 seconds, yet the universe expanded by a factor of 10^26 during that time.
The next stage after the great inflation was the Quark and Gluon era, lasting from 10^-32 seconds to 10^-6 seconds. During this extremely brief period, the energy driving inflation was released into space, reheating it to its previous temperature.
At this moment, massive numbers of Elementary Particles formed, mainly vast quantities of Quark-Gluon plasma. Thus, it could also be called the Quark Soup