“Stock and flow” is an economic concept that writer Robin Sloan has adapted into a metaphor for media: “Flow is the feed. It’s the posts and the tweets. It’s the stream of daily and sub-daily updates that remind people you exist. Stock is the durable stuff. It’s the content you produce that’s as interesting in two months (or two years) as it is today. It’s what people discover via search. It’s what spreads slowly but surely, building fans over time.”
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