
Growth Engine · Track 11
Liturgical Folk Hymn · Congregational, building, reverent
Sarah Tavel · The hierarchy of engagement | Sarah Tavel
“Every hand that turns the wheel makes the wheel remember.”- Sarah Tavel
Sarah Tavel developed the hierarchy of engagement framework while at Pinterest, where she observed that users who pinned (saved content) retained at dramatically higher rates than those who just browsed. The framework has three levels: find the core action, make it accrue benefits over time, and create a self-perpetuating flywheel. The bridge references Clubhouse (viral but no retention) and Evernote (stored value but no network effects) as cautionary tales.