This is a Lexicon entry: the mechanism, when it shows up, and the countermeasure. The full correction, with real-world cases and the audit prompt, hasn't been written yet.
When it shows up
When asked to recall personal memories, people of all ages retrieve more memories from their teens and twenties than from any other period. Music, books, films and cultural events from this period feel more significant. Political attitudes formed during this window are unusually stable. "The music was better then" is the reminiscence bump talking.
Failure mode
Overweighting experiences from this period in current decision-making. Nostalgia for the reminiscence bump era distorts assessment of the present. Cultural preferences formed during this window feel like objective taste rather than temporal accident.
Countermeasure
Recognise that the vividness of memories from ages 15-25 reflects encoding conditions (novelty, emotion, identity formation), not objective significance. Ask: "Am I judging the present against an artificially vivid past?"
Related traps
Also connected in the map5 more, locked
Also revealed
Entry #128 of 631 in The Lexicon · see the full Lexicon