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, February 26
'''Second-order thinking''' (also called second-level thinking) involves deliberately looking beyond the immediate, obvious consequences (first-order effects) of a choice to anticipate the subsequent ripple effects, chain reactions, long-term implications, and unintended outcomes. It is a powerful mental model for superior decision-making that was popularized by investor Howard Marks in his book The Most Important Thing (2011). Seconder order thinking separates average thinkers from exceptional ones — especially in investing, strategy, leadership, and life decisions.
Second order thinking frequently discussed by investors Ray Daliom Shane Parrish (Farnam Street), and others.