There are handmade bamboo scales capable of greater accuracy than most units short of digital. The traditional snowshoe lacing pattern produces @ 30% more elastic bounce than a standard tennis raquet.The finest lithic tools make cuts so fine they are now used in surgery with dramaticly reduced healing times. It is cultural hubris to think all of humanity somehow lived a grim existence before our enlightened age of microwave icecream and cutlery with fancy metallurgy. Depending solely on our technological arrogance leaves us open to fail, which we do with alarming regularity in hostile worlds people using bone and wood think of as their living room.