Was just thinking about "man, the toolmaker". As a species, we do seem to be good at it. I find tools so interesting, one of my grandpas was a cabinetmaker before he became a doctor and the other was a machinist. I had the good fortune to inherit some of their hand tools which I eventually passed down to my sons. While they were in my care I tried to learn about them... for example, what all of the hand planes were for and how to sharpen and care for them. Learned to respect the tools and feel a connection to my grandfathers when I used them. Spending time in Tinsmith's shop was an education in metalwork or an introduction anyway. The specialized tools were amazing. And when he took me to the machine shop he worked part time at I got to see amazing machines which were capable of making more machines... wow, my grandfather was foreman of a shop like that. Tools for a specific purpose show the genius of human beings. Unfortunately we are also good at making machines and tools of war and self destruction.
Enough idle speculation prompted by seeing the "hickey", a simple tool for making bends in rebar and saving lives. Cool. Give a geezer a cup of coffee and he will ramble along for as long as the caffeine lasts. What are you gonna do, eh? Patience; your time will come. My cup is empty & so am I.
SB