I'm going to guess most electronics is not going to be super high-speed. Sort of like how fiber optic was once the realm of only large businesses, then small bu

I'm going to guess most electronics is not going to be super high-speed. Sort of like how fiber optic was once the realm of only large businesses, then small businesses, and now is commonly available at home (although nowhere near 100% adoption). I think the copper PCB will eventually go away, but not for many decades.