Oddly Wired
← all facts
affective forecasting

You predict future happiness based on your current state.

A 2003 review article by Wilson and Gilbert defined the impact bias, summarizing evidence from earlier studies that showed people overestimate the duration and intensity of their emotional reactions.

The 2003 paper is a comprehensive review (Advances in Experimental Social Psychology, Vol. 35) rather than a single primary study.

You treat your current mood as the permanent baseline for tomorrow.

Where this comes from

Study
Wilson & Gilbert (2003), Advances in Experimental Social Psychology
What the check found
The phenomenon is real, but the 2003 paper is a well-known review article, not a single experiment that established the effect.
Confidence
Solid, with limits

Related

One of these every day, and every one names the study it came from. When a finding is contested, it says so.