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by red_admiral
385 days ago
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On the auto factory side, the Toyota stuck gas pedal comes to mind, even if it can happen only under worst-case circumstances. But that's the (1 - 0.[lots of nines]) case. On the software side, the THERAC story is absolutely terrifying - you replace a physical interlock with a software-based one that _can't possibly go wrong_ and you get a killing machine that would probably count as unethical for executions of convicted terrorists. |
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I am a strong proponent of hardware level interlocks for way more mundane things than that. It helps a lot in debugging to narrow down the possible states of things.