Yes I suspect most of our intelligence and know-how is actually accumulated in culture, media and tools. I read somewhere that natural selection and evolution

Yes I suspect most of our intelligence and know-how is actually accumulated in culture, media and tools. I read somewhere that natural selection and evolution happens very slowly over million of years so essentially current day Homo Sapiens would likely behave like cavemens. In District 9 most of the members of alien species stranded on earth without the overall technological structure of the ship regress to lower behaviours https://www.youtube.com/watch?v=DyLUwOcR5pk https://www.youtube.com/watch?v=DyLUwOcR5pk Sometimes I wonder if we built a too interconnected society dependent on some certain tools and those tools collapse, can we rebuild stuff from scratch? For example it seems all services are more and more dependent on the Internet and electricity. Could it be that in 200 years everything is dependent on the internet/electricity to function and once it breaks down we have lost all the intermediate tools and know-how that brought us there and we revert to technology of 4000 years ago? Right now this is unlikely, every single HomeDepot or hardware store contains thousands of tools like drills, saws nailguns that would help us quickly rebuild a collapsed world.