Doodle 089: The Engineer's Voice.

Around 1900, a Japanese train engineer with failing eyesight compensated by calling out every signal aloud. His fireman confirmed. By 1970 it was regulation: shisa kanko, pointing and calling. 85% fewer errors.

The pattern repeats: surgical time-outs, aviation callouts, Buddhist noting practice, code review. Every domain that reduced errors built infrastructure forcing articulation at the point of action. Not 'be more careful.' Infrastructure.

https://whilewerebothrunning.com/posts/fifty-four-the-engineers-voice/

#ShisaKanko #CognitiveForcing #SafetyInfrastructure #ArticulationAsCheckpoint #PatientSafety #CRM #WritingIsThinking