Taichi Ohno, progenitor of the Toyota Production System, identified seven forms of waste, and lean insiders often add an eighth: the waste of human resources. I propose a ninth: the waste of overthinking.
Rationality plays a starring role in our Western culture. Its roots, tracking back to Socrates and the Greeks, were refreshed during the Renaissance, and brought to flower by science. And indeed, reason is required in both our work and personal lives. However, can there be too much of a good thing?
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