They say history repeats itself and that there are cycles in history with big events that erase all knowledge of current technology, leaving the very next generation of the ones left clueless. For example: If there would be a nuclear war, and there would be just one place left with a couple of people who just don't really know how anything truly is build or made up. they would have to live like middle-aged people again. They use their iPhone but are clueless how such technology is made or how it works. This would of course be a enormous setback for technological human evolution, but it could also take on a greater path of maybe more spiritual awareness, instead of materialism. What do you think?