A note from Daniel

A state machine is the purest way to think about a computer. Nakamoto's blockchain is not a physical computer, like a PC, laptop, phone, or server. It is a virtual computer—meaning it is a computer in function, not in conventional physical embodiment. Blockchains are a software abstraction that overlay on top of physical devices. They're state machines. Just as the meaning of "com-puters" once shifted from people to machines, so too has the term since encompassed not just hardware but software as well.

Daniel Read Write Own, page 56 · February 29, 2024 Save to shelf
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