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Infosys co-founder once again calls for longer than 70-hour weeks - and no, he's not joking
(www.techradar.com)
This is a most excellent place for technology news and articles.
Apparently it's about reducing shift changes, which is when most mistakes happen. You would have to hope that someone has done research into mistakes caused by fatigue vs. mistakes caused by shift changes.
In the healthcare environment that is true. 12h shifts retain consistency between back and forth reporting, while with 8hr shifts things get lost or missed or misinterpreted in the handoff.
My point is that 3 is the sweet spot, it’s the 4th and fifth shifts that become cumulatively bad and result in increased car accidents on the commute.