You don't remember facts. You remember arguments.

Every topic in Overheard is a short Socratic dialogue between two recurring characters — Vera, the examiner, and Osei, the expert. You tap through it one turn at a time, and before each reveal you commit to an answer in your head.

That half-second of commitment is retrieval practice — the most replicated finding in memory research. Rereading builds familiarity, which feels like learning and isn't. Guessing first builds recall you can actually use under exam pressure.

We use two characters, not a new narrator each time, on purpose. Your brain evolved to track who said what to whom — so a disagreement between two people you recognise sticks far better than a bullet point. After a week, you start hearing Vera in the exam hall.

A library, not a robot

There is no generator here. Nothing is produced on demand. Every conversation is authored offline, edited by someone who knows the subject, traced to named sources, and signed by a credentialed reviewer before it is allowed to publish. A conversation nobody checked is worth nothing when you're sitting the exam — so we don't ship one.

Every page carries a reviewer stamp: who checked it, their credential, the date, what it's aligned to, and the sources. Spot a mistake and you can flag it in one tap; a subject reviewer looks within 48 hours, and we publish the fix, not a quiet edit.

It is not a replacement for your textbook. It's the retention layer you reach for once you've read the material and it still hasn't stuck.