Why Senna exists

You tried the popular science book. You felt like you understood. A month later, you couldn't explain any of it.

A university course would build real understanding, but nobody takes a university course for fun. And lectures don't work anyway — not for deep understanding, not for retention.

The classroom was never designed for understanding. It was designed for scale. One teacher, thirty students, everyone at the same pace. If you didn't get it, you moved on anyway.

There is a better way. It's 2,400 years old.

Socrates never lectured. He asked questions. Not easy ones — questions that made you realise what you thought you knew, you didn't. Questions that forced you to think, not just remember.

This is how humans actually learn. Not by being told the answer, but by reasoning their way to it. When you figure something out yourself, it stays. When someone tells you, it fades.

The problem was never the method. It was that Socratic tutoring requires one brilliant tutor per student. Until now, that didn't scale.

You don't move on until you understand.

In a classroom, time is fixed and understanding is variable. The bell rings, the class moves on, and the gaps in your knowledge compound. Every new concept is built on a foundation you never finished.

Mastery learning flips this. Understanding is fixed and time is variable. You take as long as you need. Each concept is a building block — you don't stack the next one until the one beneath it is solid.

Research has shown this for decades. Students who learn through mastery outperform traditional classrooms dramatically. The reason it never caught on is the same reason Socratic tutoring didn't — it requires individual attention that classrooms can't provide.

For the first time in history, everyone can have a brilliant tutor.

AI changes the economics of one-on-one learning. A tutor that asks the right questions, adapts to how you think, knows what you understand and what you don't — and never runs out of patience.

Not a chatbot that hands you answers. Not a search engine dressed up as a conversation. A tutor that does what the best human tutors do — asks you questions until you figure it out yourself.

This is what AI was always supposed to be for. Not replacing human thought — provoking it.

Pick a question. Have a conversation. Understand.

Senna combines Socratic dialogue with mastery learning. You choose a question you genuinely want answered — How did life begin? Why do I sleep? — and an AI tutor guides you to understanding through conversation.

Every concept you master connects to the next. Your knowledge grows as a graph, not a list. You don't move on until you genuinely understand. And because the tutor adapts to you, no two journeys are the same.