Review Detail of shubh_gupta in Devouring City: My Mobile City Evolves Infinitely

I suppose that the "technologies" the synospis is talking about are the machines and other objects created by their civilization. The people left behind have the knowledge to rebuild everything, but not the recourses.

I think the author was unable to differentiate between fuel, which is extracted and finite, from technology. China uses a lot of coal and oil, it is likely that the green discussion did not reach the author when he wrote this.