The title is a bit over dramatic but, per the title, if you could contribute with one piece of knowledge to a book that every single individual should learn from in order to kickstart a civilization, what would be yours?
My personal choice would be the process of soap making, from scratch.
2 points
I guess I misunderstood the question as being what we we’re capable of personally contributing.
If it’s just hypotheticals, I would contribute antibiotics and how to make those.
1 point