On top of that, computers today gain most of their value interacting with other computers. Which means at some point the capital-wielding companies will just leave the market, and the prices of new general-purpose computers will go way, way up. The market for people requiring general-purpose computation is small and getting smaller, while the market for constrained computing is only ever bigger. But economies of scale are capital-intensive, so they exist only where there's a market for it. The problem GP refers to is this: making computers is expensive, gets cheaper with economies of scale. That was on the rising edge of the wave of "computers are awesome and will change everyone's life". I can't just go looking to take a class, either: not all schools have shops! Shops with tools are not plentiful and readily accessible to average people, the engines can't be examined from the inside out, coils and springs are dangerous physically. This distinction is massive, and yet we still use analogies to cars.
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In contrast, learning how an engine works requires mass-based tools that are big and expensive and require careful knowledge of how to not harm yourself when disassembling or working on the engine. Anyone can learn - even using a web browser and notepad to write JS.
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To be frank, I think this distinction is precisely why I get frustrated at computing incompetence: a PC at home isn't locked down and has access to these tools. Granted: we as CS folks and business folks are choking off our own sources of talent by hiding the tools and keys needed to truly examine our systems, all in the name of "user-friendlines", but its still possible to use what is exposed to learn computing basics like how wifi works, or what a proxy server are. In essence, a steam engine is just a power supply.Ī general purpose computer, on the other hand, includes a power supply, and generally doesnt need tools that change matter to retarget it for another application the tools needed to do so are made of information, and are thus readily available. A steam engine requires tools made of matter to make it provide mechanical power to another system. The difference is scarcity and readily available tools to retarget the steam engine for a different workload.
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