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by amelius 2790 days ago
Well, a computer is basically a handful of gates, instantiated millions of times. So you only have to optimize those basic gates, and because they are (supposed to be) small, the design-space is small as well which simplifies optimization.

The hard part is actually the parasitics that come into play (capacitive/inductive coupling between signal lines and the bulk), and dealing with that when synthesizing the design.

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Digital circuits also add the joys of clocks.