Dark Epitaph

[Soft science fiction, no immortality, no supernatural powers] (ps: If you see any unscientific settings, don't scold them yet, they will be explained later) Once upon a time… Or maybe a long, long time later Basic human science is locked up The heroic spirits of the future wander at the end of time The tragic song of 2090 sings the last epic of mankind A physicist, a businessman's daughter Return to the future, return to 2090, return to the "critical point between the 21st and 22nd centuries" to explore the truth behind the lockup of basic human sciences