I was responding to post about 100% fictional and magical situation, see https://news.ycombinator.com/item?id=27021924 https://news.ycombinator.com/item?id=2702

I was responding to post about 100% fictional and magical situation, see https://news.ycombinator.com/item?id=27021924 https://news.ycombinator.com/item?id=27021924 I think that noone here was thinking that this scenario is likely? > all working technology is 100% destroyed into ash. We don't even have a proper hammer or knife. What we do have is written documentation about how the modern world works, and an army of the brightest engineers. Preparing for such scenario is waste of time, but thinking about it may be interesting. Actual complexity and importance of various infrastructure is interesting. > This is akin to "preppers" learning to make fire by rubbing sticks together: in what situation do they think they'll run out of matches and cigarette lighters? This one is actually possible to be directly useful, and not an example of something useless.