This is like a popular-science novel, in which the author uses easy-to-understand language to explain the scientific theories and principles behind parallel universes, multiverses, higher-dimensional universes, and transmigration...
The male lead keeps transmigrating between an immortal cultivation world and the future. Is he suffering from schizophrenia or hallucinations? What if it's real? If these two real worlds intersect, and technological civilization clashes with cultivation civilization, which will prevail?
What truth lies hidden behind all these mysteries...?
