Nothing is intrinsically a digital computer
The syntactic structues that define computers are realisable in any physical system. Hence, the question "is a brain a digital computer?" is ill-defined because the relevant syntax can be ascribed to any sufficiently complex system.

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John Searle, 1992.

CONTEXT(Help)
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Artificial Intelligence »Artificial Intelligence
Can computers think? [1] »Can computers think? [1]
Yes: because a brain is a computer »Yes: because a brain is a computer
Nothing is intrinsically a digital computer
Formal programs realizable in multiple media »Formal programs realizable in multiple media
Programs not universally realizable »Programs not universally realizable
John Searle »John Searle
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