[sofixa]

> This thing with duty feeling is hard. They all feel they did their best

If you work in aerospace and your "best" is non-redundant inputs from a sensor known to fail, you're not good enough for aerospace and never were. I know not to do that and I'm just a former SRE who also likes air crash investigation. My homelab has more redundancy than a critical system that could by design crash an airplane.

And people at Boeing knew this. That's why they hid the system's existence from everyone and lied to the FAA, who also utterly failed at doing its job.

[immibis]

I heard this was done on purpose because they'd need a lot more documentation if the system was important, and having redundancy would tip off the FAA to its importance.