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Large Language ModelsZenn AI/MLPublished: Oct 2, 2026, 22:00 JST

Typewriter hackathon idea bans AI, then lets AI read the paper

Typewriter hackathon idea bans AI, then lets AI read the paper

3 Key Points

  1. What happened

    A Zenn article floated a hackathon where participants get the theme on the day, use no PC, internet, smartphone, or AI, and type code onto paper with typewriters.

  2. Why it matters

    It reframes AI-era competition as designing the environment itself, not just banning AI, since AI is reserved for restoring the paper code afterward.

  3. What to watch

    The author states the idea cannot be realized because typewriters cannot be procured, and it came from a ChatGPT chat that ChatGPT wrote up.

WHO IT HITSThe idea speaks to hackathon and developer-event organizers who set competition rules, and to anyone weighing how to judge human programming skill once AI assistants are standard.

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Context & Analysis

The proposal starts from a worry the author raises: as AI writes code as a matter of course, the old-style hackathon in which people compete on typing and design skill in a limited time may slowly stop working. Even someone typing furiously at the venue might have AI writing behind them. The author treats AI-assisted development as a legitimate skill, then asks the opposite question: what kind of venue and tools would preserve a hackathon where humans compete without AI.

From that question the rules fall out one by one. No internet, no smartphone, no AI, no outside references, and code typed onto paper. The typewriter was chosen over handwriting because messy handwriting is hard even for people to read, and asking an AI to read it later is harder still, while a contest of handwriting speed would miss the point of judging programming ability. During the day AI is not available; after submission it becomes the means of returning what humans made to a modern computer, so that misread symbols, line breaks, red-pen edits, and mixed-up versions all become part of the contest. Awards such as the code the AI read most accurately and the code that gave the AI the most trouble extend that collaboration to the end.

The author is candid that none of this needs to happen, and that the practical obstacle is procurement: typewriters cannot be found. The real question the piece wants to raise is not whether to ban AI, but how to redesign the competition environment itself when AI is taken for granted, since simply banning AI under the old rules is probably not enough. Whether such an event ever becomes feasible seems to hinge less on the rules than on whether the hardware can be sourced at all.

FAQ
What is banned during the contest?
ChatGPT, Claude, Gemini and other generative AI, internet search, and smartphones are not allowed during the making time. Participants must rely on their own head and a typewriter.
How does AI fit in if it is banned?
AI is used only after submission, from 17:00 to 18:00, to read the paper and restore it into a digital program. Misreads by the AI are treated as part of the event.
Will this event actually take place?
No. The author says it cannot be realized because typewriters cannot be procured, and describes the whole thing as a fantasy born from overstepping.

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