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What TLA+ can and can't check

243 points · 51 comments · b-man

  1. adamddev1 · · focus · HN ↗
    Great write-up. People keep saying "we can just write tests" or more recently "we can use formal verification," thinking these are sufficient safeguards we can use and then relegate all the implementation to LLMs. But the fact is that probabilistic guessing machines can't save them. People can't escape the need to actually understand the things they are building.
    1. jldugger · · focus · HN ↗
      > People can't escape the need to actually understand the things they are building.

      While on the one hand, you do need some kind of grounding in human specification for what to build and what good looks like, any particular defect humans can find should be findable via software.

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