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I really like your idea, lph. Reminds me of "Why Japan's Rail Workers Point at Things" https://news.ycombinator.com/item?id=14011793

My children are teens now, but I agree 100% that having children changed me in the same way that it changed you.

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I loved that that article about Japan's rail workers. I'm a huge fan of this stuff. Pre-flight checklists, rock-climbing belay call-and-response, operating room instrument counts (to make sure nothing was left in the patient!), etc. Protocols based on the premise that even experts are fallible, and that even easy things can go sideways.

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