Part of me believes that the idea behind Fenspace making them isn't that they're really efficient hardtech... it's that it's one of the technologies Fen can use Handwaved manufacturing processes on the hardtech to basically blow out the development curve. Purer forms of silicon, with far fewer manufacturing errors. Not to mention the design aids from Handwaved computer hardware.
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor