I also can't access this article -- would love to check it out, if/when it's back online.

No idea if this article mentions the book, "The Knowledge" by Lewis Dartnell (see above) -- however I would highly recommend the book if anyone is interested on the actual "knowledge" necessary to reboot a civilization. It goes into some depth on the actual chemical/mechanical processes involved in building modern technology, and more-or-less outlines the steps to go from "stone age" (or at least "post-apocalypse") tech back to something like "modern" technology. Really interesting read, that also is illuminating on how modern technology (and thus civilization) is so much more deeply complicated than most probably realize.