Found in 3 comments on Hacker News
maneesh · 2022-01-04 · Original thread
Easy. I'd just work through everything on this time travel guide I carry in my wallet. I'm always prepared.

From this fantastic book

fernly · 2020-02-17 · Original thread
Oh, puh-leeze! THE book on rebuilding civilization is How to Invent Everything: A Survival Guide for the Stranded Time-Traveler[1] by Ryan North.


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