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  "map_content": "*   Every mechanism becomes a **target for optimization by people who don't share your intent.** MEV, sybils, spam, governance capture\u2014these aren't bugs in open systems, they're the _expected behavior_ of open systems under rational self-interest.\n*   Closed systems can screen membership; open ones trade that away for neutrality. > **Openness converts trust-in-people into robustness-of-mechanism.** And no mechanism is robust against _every_ incentive. You're perpetually one unpriced externality away from exploitation. ## Limitation 2: The Coordination Ceiling Open systems coordinate through the **thinnest possible shared agreement**\u2014that's their strength (neutrality) and their cage. \\* Anything requiring _rich_ coordination\u2014judgment, context, discretion, \"we all know what we meant\"\u2014an open system cannot do. It can only enforce what it can _specify in advance._",
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