You know, for many decades — centuries, even — people have had ideas like you had here, mandarwagh. You extrapolate ideas into the future, think really hard about it, and try to lay out a compelling vision.

Typically people also wrap character and whatnot around this skeleton and call it a “science fiction short story.” That also requires that you justify parts of the narrative, though, otherwise people might claim that what you’re writing is unrealistic.