What assumptions are we making here?
80-90% die off?
Will librarys still be intact?
Will people recognize the importance of reading, writing, math? I am talking about old school, paper and pen (or even slate and charcoal), real mathmatics? With no modern inputs?
That is all well and good, as long as the basics Maslow’s hierarchy of needs) are met.
Looking around our current society, do we really want to bring back some of those technological miracels that lead to Facebook?