A faster way to learn. Keep up with your chatbot. Open the bottleneck.
You can only verify what you've durably learned. curiositree is the durability layer — a learning companion with a real memory model underneath.
The machines got faster. Understanding didn't.
AI now produces code and prose faster than anyone can genuinely understand them. Geoffrey Litt named the moment — understanding is the new bottleneck — and Addy Osmani named the gap: comprehension debt.
In a January 2026 randomized trial, engineers who leaned on AI to learn a new library finished in about the same time — and scored 17% lower on comprehension, with the worst declines in debugging. Passive delegation erodes skill formation. Active, question-driven learning doesn't.
A quiz can tell you whether you understood something this morning. curiositree knows whether you'll still understand it in March.
Follow your curiosity.
curiositree remembers where it leads.
Ask anything. Branch any answer into the next question. It maps what you're exploring into a living garden — and brings the important parts back, right before you'd forget.
Branch
Every question can split into another. Follow a tangent without losing the thread — your thinking becomes a canvas you can walk back through.
Remember
It builds a map of what you actually know — real spaced repetition underneath — and comes back to reinforce it. A memory that sticks, not a chat you scroll past.
Companion
Ember, a guide that learns alongside you and nudges you forward. Not a vending machine for answers — a companion for actually getting somewhere.
Not another chat window. A place your learning lives.
- ✦Not a quiz bolted onto a chatbot. Underneath is a real learner model — spaced repetition, an explicit concept graph, calibrated memory with decay — that compounds the longer you use it.
- ✦The chat is just the surface. The memory and the map are the product — everything you explore is kept, connected, and brought back.
- ✦Not a flashcard app. You never author decks — curiositree grows the review material out of your real curiosity.
- ✦Local-first. Your conversations stay in your browser, on your device.
For curious, self-directed adult learners — relearning math, CS, and science for the love of it.