It's extremely hard to reason about the global emergent behavior of a complex sy... | Hacker News

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		jude- on June 30, 2021 \| parent \| context \| favorite \| on: GitHub Copilot It's extremely hard to reason about the global emergent behavior of a complex system than the isolated behavior of a small component.

Jeff_Brown on June 30, 2021 [–]

I don't think it's a function of complexity per se, but determinism. This is why Haskellers love the IO monad. Used well, it lets you quarantine IO to a thin top-level layer, below which all functions are pure and easy to unit test.

jude- on June 30, 2021 | [–]

Distributed systems are anything but deterministic.

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