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It's helpful for some people to see the same message multiple times in different ways. This particular message (exercise for brain and stamina improvements) is relevant to a crowd of sedentary brain workers.

Not everyone's HN history is as long as yours or others', so it's helpful to newcomers to see relevant posts and ideas that may have appeared before.

Not everyone has analyzed the world as completely as you or others, and could use a little nudge forward in many areas.




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