I understand your point, but the scale of the potential effects of climate change combined with all the societal structures in place, and the number of people required to keep that structure "fed", that allow for the knowledge to be passed down makes me feel that even one generation worth of a significantly depleted humanity (something like 10% of current, spread around the world) who are largely occupied with just ensuring enough food and shelter to survive, will see those societal structures need to be rebuilt from scratch.