CAP Theorem Sandbox
Partition, then choose — consistency or availability
Three replicas, one network. Trigger a partition, then write and read across the split. In CP mode the minority side refuses. In AP mode it answers, sometimes with stale or divergent values. The theorem is not a recommendation; it is a wall you bump into.
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During a partition you pick a failure mode: refuse to answer (CP), or answer but risk stale data (AP). The theorem is not that one is better — it is that there is no third door.