Conversation

Totally ordered sequence of bespoke tasks, payoffs at end, linkages that span first to last outputs (eg. clue on page 1 of murder mystery)
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Simply breaking up the narrative into arbitrary chapters makes every chunk unsatisfying. The first chapter of a mystery is all Chekov guns.
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In creating "batches" (chapter-sized "releases") you have to create artificial 'episode arcs', cliffhangers and subplot wraps
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My point: there is a tradeoff between batch size reduction and narrative serialization costs and a crossover line where former beats latter
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