N 3 R D

Understand your lectures. Don't memorise them.

Exams reward students who can explain why something happens. N3RD takes your own lecture material and rebuilds it as a step-by-step chain of cause and effect — then checks every step against your slides before you ever see it.

Summarising isn't understanding

Every AI study tool shortens your slides. That gets you a neater version of what you already had — and it's the wrong thing, because slides state conclusions and examiners ask for mechanisms.

What a summary gives you
"BTK mutations cause X-linked agammaglobulinaemia."

True, and almost useless. It's the slide again, shorter. You can recite it and still lose every mark on "explain how".

What N3RD gives you
Six linked steps from a faulty protein to a child with recurrent pneumonia.

Each one stating what happens and why it follows — so you can rebuild the answer under exam pressure instead of hoping you remember the sentence.

What it actually looks like

Part of a real chain, built from an immunology case study:

1

The BTK gene on the X chromosome carries a mutation, so Bruton's tyrosine kinase is produced in a non-functional form.

From your slides: "The BTK gene responsible for XLA is located on the long arm of the X chromosome (Xq22)."

2

B-cell development halts at the pre-B-cell stage, because maturation past that point depends on functional BTK.

From your slides: "Mutations in BTK block maturation at the pre-B-cell stage."

3

No mature B cells reach circulation, so none are available to differentiate into antibody-secreting plasma cells.

From your slides: "0% CD19+ B cells… confirming a complete absence of B cells."

Every step above is quoted from the student's own material. Anything the checker can't trace back to your slides never makes it onto the page.

Two minds, not one

AI writes convincingly whether or not it's right — which is exactly the problem when you're revising for a medical exam. So N3RD doesn't trust a single pass.

One builds

Reads your material and constructs the chain, quoting your slides for every step it claims.

A different one checks

A separate model audits each step: does it follow, does it contradict, is it actually supported by your material? A model reviewing its own work tends to agree with itself — so it doesn't review its own.

You see what survives

Steps that can't be backed up are removed, not flagged with a warning. A shorter chain you can trust beats a longer one you can't.

How it works

  1. Paste your lecture. Slides, notes, a transcript — your own course material, not a generic textbook.
  2. It's rebuilt as mechanism. Step by step, cause to effect, each one quoting your material.
  3. It's checked before you see it. A second model audits every step independently.
  4. Revise from it. Notes at the depth you want, mind maps, and flashcards — all drawn from the same checked chain, so nothing contradicts anything else.
In development — early access opening soon

Built by a student, for the exams we actually sit

N3RD is being built now. Join the early-access list and you'll be among the first in, free, while it's finding its feet.