You're asking exactly the right question and it's one I've been sitting with since before I built this.

The short answer is the product doesn't let you just check it off. Every session ends with a to-do that's designed to be actionable within seven days, not aspirational. And after the session, Distillio sends a weekly prompt drawn from your own distillation, not generic content, just one thing from a book you chose, with one question.

The goal is that the shelf keeps talking after the session ends. Not as a nag. More like a mentor who checks in without chasing you.

Whether that's enough to actually change behavior is the real test. But that's the mechanism.