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I think the point still stands but in a different way. The architecture was designed to be quite reliable.

More than google.com? Maybe, but it's close. Also, I'd be surprised if those behind NOTAM were all "professional engineers" since software PEs are pretty rare, relatively speaking. Especially in the US.

You're comparing database to a service. NOTAM is real-time, google.com is not.

By that standard google.com is always down.

It would seem to me that the FAA NOTAM system had professional engineers working on it to produce that uptime.

If it wasn't then who built it? Or is it the quotes we should focus on.

Sure, but we do make intentional tradeoffs, at least sometimes.

AWS uptime is pretty insane

According to their own status page, yes

yes, some part of aws somewhere is always online.

fully functional? 7.12.2021 alone was enough to kill that statement for the next few years.