mass industrialization, market economies, and globalism suppress skill development. to gain skills, you need patience and time. two things that will never survive economically in our current system.  have you noticed nobody knows their jobs anymore? that is because when they even begin to get good at it, they are let go or get a new job.  when i was growing up, if you had questions about construction or hardware, you would ask the hardware store employees. today, you have to tell the hardware store employees about construction and hardware. they know nothing. same with every other industry, you literally have to do their job for them to get it right.  so, no, we don't know how to do this anymore, and we never will. just wait for another cataclysm and another 10,000 years and we may figure it out again.
United States