A young reporter nicknamed Little Know-It-All is guided through a future metropolis, encountering specific technologies like synthetic food, automated transport, weather control, and artificial materials, each demonstrated as a working part of daily life. The narrative stages scientific speculation as firsthand reportage: a curious observer who asks questions and receives explanations rather than a lecture delivered directly to the reader.
Abstract or technical content is delivered through a naive questioner who stands in for the young reader, so every explanation arises from a concrete question in a concrete scene. The gap between the character's ignorance and the guides' knowledge becomes the engine that paces and motivates each disclosure.
The book treats the future as the accumulated result of scientific advances turned into tangible everyday objects and conveniences, from food synthesis to transport and construction. Tomorrow is depicted not as a change in human nature or politics but as the material payoff of continued research and engineering.
Technologies are evaluated and presented through how they reshape ordinary routines: eating, traveling, dressing, housing, rather than through grand feats or abstract capability. Seeing invention through the texture of daily habit makes its significance legible to a non-expert by anchoring it in familiar needs.