The parallel universe refers to the parallel force universe, which is the opposite of the gravitational universe (classical universe). The parallel force of the parallel universe produces the pure elementary particle universe, and the gravitational force of the opposite gravitational universe produces the pure planetary universe. The parallel force universe of the parallel universe and the opposite gravitational planetary universe form the multiverse. In these universes, there are also universes that were born under the same conditions of interaction as our universe. There may also exist planets that are the same as the planets inhabited by humans, or have the same history, and there may also be planets that are completely different from humans. The same unknown interacting force universe. In these universes of different interacting forces, things will develop differently.
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