Interactive Childhood Influence Model, 1900–2020

How the model works. For each 5-year period, each channel's score = T × W. Scores are normalized so each year sums to 100%. The peer-split slider determines what fraction of algorithmic exposure is reallocated to Peers (since friend-mediated content is both algorithmic and peer interaction). Default T values are the literature anchors documented in Defensible_TandW_Assembly.md; pre-1965 T values are reconstructions from school enrollment, broadcast penetration, female labor-force participation, and religious affiliation series.