You would think the therac-25 was enough of an engineering lesson on designing safety-critical systems in software that lack hardware redundancy. Maybe they didn't consider the door handles "safety critical".

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marcosdumay 11 hours ago | parent | next [-]

I don't know about hardware redundancy, but yes for at least "easily verifiable limiters".

What is "hardware" anyway? Does a microcontroller-based integrator or debouncer count? Depending on how you define that, it can become a serious roadblocker. But anyway, I guess that point is moot for a door handle, you can fix it with stuff that is unambiguously hardware.

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chrismeller 11 hours ago | parent [-]

> What is "hardware" anyway? Does a microcontroller-based integrator or debouncer count?

Hmm, good question. In this context, I guess "continues to work after the EMP"?

	▲	marcosdumay 10 hours ago \| parent [-]
		So, antennas and grid power are forbidden, microprocessors and batteries are permitted? Do you expect a mechanical wave to come with the EMP or it originates in space?

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lawn 11 hours ago | parent | prev | next [-]

Another lesson not learnt from therac-25 (and really most disasters caused by humans) is that safety is a cultural issue, that needs to be taken seriously from top to bottom in the organization.

This is clearly not the case with Tesla.

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burnt-resistor 11 hours ago | parent | prev [-]

Elon does watch or understand USCSB or their videos, he defunds them because he "knows better".

https://www.youtube.com/@USCSB