Empathy Gap
The Empathy Gap is a cognitive bias where individuals in a "cold" rational state systematically underestimate the influence of visceral "hot" states — such as hunger, anger, fear, or sexual arousal — on their own future behavior and the behavior of others. Formalized by George Loewenstein in 1996, this mental model explains why we make commitments when calm that we cannot keep when emotional, why policymakers fail to predict public reactions to crises, and why drug addicts relapse despite sincere intentions to quit. Understanding the Empathy Gap allows for better self-regulation, more accurate forecasting, and more effective behavioral design.
Impact Bias
The Impact Bias is the tendency to overestimate the intensity and duration of emotional reactions to future events — both positive and negative. Documented by Daniel Gilbert and Timothy Wilson, it explains why major life events (promotions, losses, break-ups) have less lasting impact on wellbeing than predicted, due to "psychological immune system" mechanisms including rationalisation, adaptation, and sense-making that modulate emotional responses.
Projection Bias
Projection Bias is a cognitive distortion where individuals overestimate the degree to which their future tastes, preferences, and emotional states will match their current ones. Formalized by Loewenstein, O'Donoghue, and Rabin in 2003, this mental model explains why we over-order at restaurants when hungry, why we buy convertibles on sunny days, and why policymakers often fail to account for the actual needs of the populations they serve. Mastering Projection Bias allows for better long-term planning by neutralizing the "Empathy Gap" between your current self and your future self.