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by kragen 1045 days ago
i don't see how saying that 20-nanometer-diameter sram cells and switching elements will work could be any farther from handwaving; they're already in mass production, forming the bulk of shipped processors for cellphones and laptops this year

the only handwaving in the bit you quoted consists of saying that it's not possible to build computers where the entire computer is less than a micron across with current manufacturing techniques

it's certainly true that computers don't require programmers. i think it's easier to reason correctly about the issue the other way around; programmers can do anything, but they require computers to do it

50 years ago, if you wanted to cycle the current in a voltammetry lab setup or make your windshield wipers intermittent, you designed a circuit. if you wanted to get a screw machine to cut a new kind of screw, you probably cut some new cams out of steel sheet. if you wanted to retard the spark timing on your engine ignition, you adjusted a screw

now in all those cases you just write a program, or perhaps even change some parameters to a program, because all those things are controlled by computers now. so suddenly you have lots of programmers working in these areas

today, if you want a ditch dug, you don't write a program; you rent a backhoe or pick up a shovel. but that's just because your dirt isn't programmable yet

the flying cars problem is well documented to be a question of regulatory obstacles and governance, not technical capabilities. lots of people do fly ultralights today, you can find videos on youtube

will the same problem force you to move your dirt with a shovel 50 years from now instead of just telling it where to go? yeah, plausibly, but that's just a question of amish-style or tokugawa-style rejection of technology, not a question of saturating the possibilities

as for corporatism in the usa, it definitely isn't a thing. possibly you just don't know what corporatism is https://en.wikipedia.org/wiki/Corporatism