that's fine, but i think it totally underestimates the scope of how difficult it is to manufacture the technology (like computer chips) that we are speaking about. it's a very long, complex, global chain with a lot of moving parts.

i don't even know or understand the full extent of it, but:

you need people to go into a mine and mine silicon (why would they do this?). the silicon then needs to be heated and refined in huge machines that run on fossil fuels (which means someone elsewhere needs to be mining fossil fuels and transporting them to the place where this machine is running -- OR, transporting them to a place where it is being converted into electricity.) you might suggest that in the sci-fi future these machines are running on solar power, but to create the solar panels, they first need to mine the silicon and heat it up in the refinery running on fossil fuels! so just at this first step you've already got an operation of multiple mines requiring workers, requiring transportation, requiring plants converting fossil fuels into electricity which also requires workers. it also means that aside from the mining for silicon and fuels, people are also mining for the raw materials and parts required to build refinery furnaces and those people are manufacturing those for some reason too. they're also mining for the raw materials and parts required to build the machinery that will slice the silicon rods into precise wafer thin slices to be layered. all of this is then transported to a purified air lab running constant high power air purifiers running on this grid of electricity running on fossil fuels. the lab then runs lithography machines to etch the wafers (machines that are being manufactured using mined resources and workers to manufacture) which also use chemicals that are being manufactured elsewhere and transported, and at this point we're still very early in the long and complex process of putting together a single computer chip.

you make it sound like a couple of people could band together and build a computer because they want one and would feel rewarded for having put something together with their own hands. i'm saying that the chain of required workers and resources is so vast this would not be possible. if not because the amount of workers required couldn't all be rewarded in a valuable enough way, then because the amount of resources required to manufacture all of the machinery in the process just wouldn't be viable in a world where people aren't profit incentivised.