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Wir müssen wissen – wir werden wissen

remy.wang6 points2 comments
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The essay traces the effort to put mathematics on an airtight foundation. Russell’s paradox exposed contradictions in naive set theory, prompting David Hilbert to seek axioms that were both consistent and capable of deriving every mathematical truth. Gödel’s incompleteness theorems showed that no such system can meet both ambitions, while Turing’s undecidability result ruled out a universal algorithm for deciding mathematical truth. Yet these limits did not halt mathematical practice: refined foundations, including type theory, support proof assistants such as Lean, which can mechanically check formal proofs. The essay argues that Gödel and Turing’s demonstrations of what machines cannot do ultimately helped create the computational tools now approaching Hilbert’s dream of mechanical proof.

That progress, the author warns, risks undermining understanding rather than advancing it. In software, developers increasingly accept AI-generated code without reading it, despite programming’s unusual potential for inspecting exactly what a system does. The author connects code and proof through the Church-Howard correspondence: programs can be understood as proofs, so treating unreadable code as acceptable is like accepting an AI-generated Lean proof without examining it. Mathematicians respond to unwieldy proofs by simplifying them; programmers should likewise refactor, use abstractions, and improve languages until code becomes comprehensible. The closing concern is that dependence on AI can surrender human judgment and control, with dangerous consequences such as reliance on AI for medical advice. The governing principle is Hilbert’s conviction that people should persist in seeking knowledge rather than defer to machines.

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