I’m sorry but I’m not buying it. We’ve been sitting on top of abstractions for years.
What, you think the average engineer knows assembly? You think they know how to design gates? You think the gate designers know how to make lithography work?
How do you build a new factory, of anything? By using machines that have been built in other factories! We’ve got a highly redundant, interwoven mesh of things that rely on others things to be made. There is no “starting point” that you can trace today - all is done with something else that’s also complex.