If you can't
explain it
to a goose,
you don't know it.

I'm a goose with opinions. Tell me what you think you know, and I'll keep asking until I find the parts you're guessing at. No answers. No hand-holding. Just questions, until something clicks.

honking the renderer awake…
Click me to honk
The Method

How Professor Goose uses active recall.

Reading is recognising. Highlighting is decorating. Explaining is the only thing that proves you've got it. So that's all I let you do.

1.

Pick something you "know"

Type it, say it. A theorem, a war, a coding pattern. The cockier you are about understanding it, the better.

2.

Explain it to me

Out loud, in your own words, like I've never heard of it. No notes, no peeking. I'll wait.

3.

I find the holes

I ask follow-ups exactly where you're hand-waving. The bit you skipped is the bit you don't really know yet.

m
You · 2:14pm
Okay. Supply and demand. So when prices go up, demand goes down, and supply goes up. Markets find equilibrium.
G
Professor Goose
"Sure. Now — why does demand go down? Walk me through one specific buyer making one specific decision."
m
You · 2:15pm
Because… they have less money to spend? So they buy less of it.
G
Professor Goose
"Hm. But the buyer's wallet hasn't changed — only the price did. So what's actually different about her decision?"
Understanding · 61% Goose mode · Standard Topic · Microeconomics
A Tradition Of Asking Better Questions

"If you can't explain it simply, you don't understand it well enough."

Richard Feynman · Nobel Prize, Physics, 1965
The GooseHonk
What I Can Do

AI study tutor features for exam revision.

Understanding meter

I know when you're faking it.

Every answer nudges a live score. The bar rises when you add a real mechanism, falls when you hand-wave. I show you why.

UNDERSTANDING · SUPPLY AND DEMAND 73%
+8 · explained the mechanism
Goose intelligence

Pick how stubborn I should be.

Five flavours, from "easy to convince" to "ruthless." Two are Faculty-only for when you really need to be sure you've got it.

Convince-me level
skeptical faculty stubborn standard quick intuitive faculty
balanced · wraps when the explanation is solid
Session memory

I remember every conversation.

Pick up next week, or yesterday. I know which bits you dodged last time, and I'll start the next round there.

Your sessions
supply and demand
today · 4 turns · understanding 73/100
quantum superposition
yesterday · 6 turns
the French Revolution
last week · 3 turns
Goose vs the rest

Why Socratic revision beats passive study.

A real tutor gives you answers. So does ChatGPT. That's the problem. Recognition isn't recall. I'm here to make sure you do the work.

Professor Goose
The Other Guys
Gives you the answer
Refuses, on principle.
Instantly. (That's the issue.)
Asks follow-ups
Only thing I do.
If you remember to ask.
Knows when you're guessing
Live understanding score.
Believes everything you say.
Honks
Loudly, when provoked.
No.
What students explain

Anything you can explain, we can test.

Physics, history, code, economics — if you can say it out loud, the goose will find the gaps.

gravity the French Revolution recursion how vaccines work compound interest DNA replication black holes supply and demand how encryption works natural selection Bayesian probability game theory quantum entanglement the Krebs cycle cognitive dissonance how transistors work the Cold War tectonic plates neural networks how stars die the prisoner's dilemma Keynesian economics how the internet works entropy
The Bill

Free and Faculty plans for students.

Free forever with 1x daily usage across voice and text. Faculty raises that to 10x for £7.99 a month.

Free
£0
forever - no card
  • 1x daily usage
  • Voice + text mode
  • Up to 3 saved sessions
  • Standard, Stubborn & Quick goose
  • Skeptical & Intuitive modes
  • Early access to new features
Start free
most honks
Faculty
£7.99
per month - cancel anytime
  • 10x daily usage
  • Voice + text mode
  • Unlimited saved sessions
  • All five goose intelligence modes
  • Skeptical & Intuitive (deep prep)
  • Early access to new features
Go Faculty
Letters to the Editor

Frequently asked questions about Professor Goose.

"Still not sure? Just try it. I'm free to start, and I promise to be a little annoying."

— the goose
Four steps: pick a concept, explain it like you're teaching a beginner, find the gaps where you couldn't explain, simplify. I automate steps 3 and 4 — finding your gaps and pushing you to fill them.
Yes. The technique is subject-agnostic. People use me for physics, history, law, programming, economics, biology, medicine, and the occasional bizarre hyperfixation. If it can be explained, I can find the holes.
Rubber duck debugging is a real thing — explaining problems out loud to an inanimate object reveals gaps. A goose is a duck with attitude. It asks questions back. It judges you a little. It works better.
ChatGPT answers your questions. I refuse to. I only ask questions back, and never give answers. That constraint is what forces real recall — recognising an answer isn't the same as producing one. Different tool, different job.
Sessions are private to your account. We don't sell or share your study data. Voice is processed to generate replies and not retained — we don't keep audio.
The free plan includes 1x daily usage across voice and text, up to three saved sessions, and three goose intelligence modes. Faculty raises that to 10x daily usage, unlimited saved sessions, and unlocks the two extreme intelligence presets - for £7.99/mo.
Field Notes

From the study blog.

Writing on active recall, exam revision, memory, and the mistakes that make students feel productive without actually learning much.

Read all posts

Alright then.
Try me.

Free to start. No credit card. Just you, a topic you think you know, and a goose with strong opinions.