Rikai Funo · Track 21 · middle
Ode to Prospect Theory
People evaluate outcomes as gains and losses relative to a reference point, not as absolute values. They are loss-averse: losing one hundred dollars hurts more than gaining one hundred dollars pleases. The probability weighting function overweights small probabilities and underweights large ones. Kahneman and Tversky's 1979 framework overturned expected utility theory, won the Nobel, and described the actual architecture of human judgment. An ode to the asymmetry at the core of how we decide — the irrational consistency with which we fear loss more than we love gain.
Lyrics
It all starts with you. The zero point. The line I draw in the sand, not knowing I've drawn it. Not what I have, just… where I stand. In a small seminar room that smelled of chalk dust. Metal of an overhead projector, humming warm. Amos Tversky takes out a large yellow legal pad. And the sound of his fountain pen is quick, certain. He and Danny are mapping a country with no straight roads. Asking questions about gambles, diseases, certainties. Watching the answers bend away from the rational. Away from the perfect actor, the creature of pure utility. And the slope gets steeper on the downside. Losing one hundred dollars hurts more than gaining one hundred dollars pleases. Losses loom larger than gains. It’s the asymmetry, the kink in the line at the reference point. The irrational, predictable, beautiful flaw in how we choose. A one percent chance of winning feels like a key in your hand. A ninety-nine percent chance of the same feels like a lock you could still lose. We overweight the impossible, we underweight the sure thing. They wrote it down for Econometrica in March 1979. No diagrams in that first paper. The iconic S-curve came later. Just the cold, clear words describing the warp in the human mind. And the slope gets steeper on the downside. Losing one hundred dollars hurts more than gaining one hundred dollars pleases. Losses loom larger than gains. It’s the asymmetry, the kink in the line at the reference point. The irrational, predictable, beautiful flaw in how we choose. All those years they thought we were calculators. Weighing outcomes on a perfect scale. But we are creatures of the starting line. Defined not by what we want, but by what we are terrified to lose. It’s not an error. It’s the architecture. Losses loom larger. Always larger. The fear of the fall is steeper than the hope of the climb. Larger than the gain.