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Use the [state] tag for questions pertaining to retained information determining the behavior of a program.

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Functional Programming: right ideas about concurrency and state?

To me the world (current reality) carries this idea of state and I'm missing how FP overcomes this. As our hero takes action, functions amend the state of the world. … We can't have multiple processes concurrently ammending the state of the world lest one process base its outcomes on some expired state. …
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