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Common sense has always been a thought-terminating cliché. Even Disney has an old PSA cartoon about the notion (featuring the old term, horse sense ).

At best, common sense reflects the notions that arguments should be obviously true and agreeable. But it's better if we actually express them.

So in the case of neuro-interfaced microchips, the installation procedure is still high risk, and there aren't any useful purposes for them worth the risk. Maybe at the point it restores consciousness to a comatose patient, or eyesight to the blind.