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This was an attempt at a contrarian clickbait blogpost. Obviously noise is a problem. That's a separate issue from loop tautness. Tight is a measure of loop si
by drewcoo 5y ago
This was an attempt at a contrarian clickbait blogpost.
Obviously noise is a problem. That's a separate issue from loop tautness. Tight is a measure of loop size not accuracy of information as the article claims. This is similar to accuracy vs precision.
It's worth adding that whether or not the right thing is measured is not related to feedback loop size. The "timely" 737 Max example that was peppered in shows this. Clearly what was being measured was not related to the problems the plane had.
The unsubstantiated (not even anecdotal) claims based on the author's confusion (e.g. data-less diagram of masters preferring loose loops) seem to be the author taking his own advice. They're complete speculation, not even pretending to be attached to reality.
- chrchang523 5y agoYeah, the author is using "accuracy" when he means "precision" on many occasions, and the lack of awareness of this distinction greatly lowers the blogpost's quality.
- p_l 5y agoAttributing 737 MAX issues to tight control loops also shows critical failure in understanding what happened with 737 MAX. The technical details of failures in MCAS system weren't the problem. The problem was the decision chain that caused creation of MCAS system, and that one had nothing to do with tight or loose control loops, and everything to do with business incentives perversing safety process.