No level of formal program can produce semantics
Searle accepts a program could be a mind, if implemented in a medium with the right causal powers. The key point though is that no program, no matter how low level it is, could ever produce semantics only by virtue of syntactic symbol manipulations.
Hence Jacquette's appeal to microlevel isomorphism won't help.

John Searle, 1989
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Artificial Intelligence »Artificial Intelligence
Can computers think? [1] »Can computers think? [1]
Yes: physical symbol systems can think [3] »Yes: physical symbol systems can think [3]
The Chinese Room Argument [4] »The Chinese Room Argument [4]
Understanding arises from right causal powers »Understanding arises from right causal powers
Brain's causal powers reproduced by a computer »Brain's causal powers reproduced by a computer
No level of formal program can produce semantics
Chinese Water Pipe Brain Simulator »Chinese Water Pipe Brain Simulator
John Searle »John Searle
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