Hmm, I think we have a different world view.Ha! The whole frame, all joints, all notches were cut by hand. The four huge square beans were milled in the woods but that was the only fossil fuel used in frame manufacture. All erection was all done by hand, no metal in the frame at all.
I totally believe in technology but only for valuable one-off uses such as building a house rather than building & running a commuter car.
So CNC buillt houses and solar cell factories are fine with me.
Computers too - but not tatty techno trinkets made by the million only to be disposed of 6 weeks later.