Sometimes- it also just rains. The end of WW2 and free trade + technology, have given the futurist ideology that every problem is solveable way to much credibility. Some problems are just hard and inherently not solveable and sometimes not even workaroundable by technology.

Utopists who run into accumulating problems, closing resource windows and simple limitations of humans (tribal creatures) and the meta-machinery they built, are bound to just run around with their pants on fire.