[JohnnyB]

I have often wondered how I would invent stuff if I was sent back in time. I remember a TED talk about what it took for a guy to build a toaster from scratch, trying to obtain and process all the raw materials himself. It was a very difficult task, and his toaster really sucked. So much is dependent upon not just having the knowledge, but having the evolved system of commerce, trade and division of skills and labor that enables people.

Anyways, my interest is definitely piqued for that book.