Abstract
Affective forecasting is predicting how future events will feel — Wilson and Gilbert show people routinely overestimate impact and underestimate durability of emotional reactions, partly because they neglect how attention, meaning, and coping will shift after the event.
Wilson, T. D., & Gilbert, D. T. (2003). Advances in Experimental Social Psychology, 35, 345–411. DOI
Key findings
- Impact bias — Forecasters expect emotional reactions to be stronger and longer than they turn out to be for many positive and negative events.
- Durability error — People underpredict psychological immune processes — rationalization, reframing, and attention shift — that shorten bad moods and mute good ones.
- Focalism — Forecasters overweight the focal event and underweight everything else that will occupy mind and time afterward.
- Miswanting risk — Systematic forecast error can drive wrong choices — pursuing or avoiding outcomes based on feelings that will not persist as imagined.
Limits
Most evidence comes from lab and survey paradigms on everyday and academic events — not long-form identity projects or multi-year careers. Forecasting errors are systematic but not universal; some events (chronic stress, trauma) break the short-horizon patterns.
Application
Before you tell yourself when I arrive I will finally feel …, write one line for the first ordinary week after — that is where forecasting error shows up as post-arrival emptiness, not on the peak day itself.