The School Sports Day Problem — Understanding the Cognitive Bias That Shapes Your Child's Album

Audience
Parents of school-age children
Target length
~1,400 words
Status
Draft v1 (translated from Japanese v1)
Original
../209_weekday_records.md

Lead

Open a child's album: twenty photos from the school sports day, fifteen from the end-of-year concert, ten from the birthday. How many from an ordinary Monday morning? Almost certainly none.

This is not neglect. It is the predictable output of structural biases built into human attention and recording behavior. And those biases, left unchecked, quietly create a problem twenty years later, when the child tries to remember "who I was back then."