About

You already learn hard things. Just not the ones on the timetable.

Nobody who can name every player in a squad, or hear a mix and say what is wrong with the low end, has a memory problem. They have a reason. Interlinked is a study tool built on that one observation: it takes the material your teacher actually set and rebuilds it out of the things you already understand well enough to explain to someone else.

Why it exists

The standard advice for a subject you find pointless is to focus harder. That advice treats attention as a quantity you are supposed to have, and quietly blames you when you do not. It has a known failure rate, and everyone who has been given it knows what that rate is.

Attention is not a quantity. It is something a thing earns by connecting to something you were already thinking about. A topic that lands is not easier than one that does not — it is attached to more of what you already have. Which means the problem with the boring half of the syllabus is not difficulty. It is that nobody has bothered to attach it to anything.

So that is the entire job here. Not motivation, not discipline, not a nicer-looking revision timetable. One explanation at a time, starting from something you already understand, going to the thing you are actually assessed on.

How a bridge gets built

Six stages, in this order. The order is not cosmetic: the free checks run before the paid ones, and the cheap call turns away the work the expensive call should never have been given.

  1. No model

    It reads what you gave it

    Slides, a handout, your own notes. The text is trimmed to what matters, measured, and fingerprinted so the same thing pasted twice is recognised rather than rebuilt.

  2. It checks the text first

    Before anything expensive happens, the material is screened. This runs on everything, and it runs before the rest of the pipeline has seen a word.

  3. It works out what it is looking at

    Subject and topic, from the material itself rather than from a dropdown you had to fill in. Anything that is not course material is turned away here, at the cheap end, instead of being confidently rewritten at the expensive one.

  4. No model

    It picks which parts of you to use

    Your interests are ranked against this exact topic and the best two to four are chosen. No model is involved — it is a plain ranking over your own profile, which is why the same topic can come back through football one week and through circuitry the next.

  5. It writes the bridge

    One explanation, built from the source in front of it and the handful of interests that survived the ranking. It starts where you already are and walks to where the syllabus needs you.

  6. It argues with itself

    The finished explanation is checked back against the source. A failure buys exactly one rewrite, and if that fails too, you get nothing rather than something plausible. Anything the check merely flagged ships attached to the bridge, where you can read it.

Cobalt is the material you are trying to learn. Ember is you. Every coloured surface in the product picks one of the two, here included — which is why exactly one stage above is warm.

What it will not do

A study tool that will say anything is worse than no study tool, because you would have no way of telling the good explanation from the fluent one.

  • It will not ship an explanation it cannot stand behind

    The verify stage reads the bridge against the source. Fail it twice and the run ends with an apology instead of an answer. A confident wrong analogy is worse than no analogy, because you would have no reason to doubt it.

  • It will not hide the seams

    Every comparison stops working somewhere. Where the check finds that edge, the note comes with the bridge rather than being quietly dropped — knowing where a model breaks is most of understanding the model.

  • It will not rewrite what is not a lesson

    Paste something that is not course material and it says so. This is a tool for the thing on your timetable, not a general-purpose rewriter wearing a school uniform.

What it keeps

You are handing a machine your notes and a description of yourself. That deserves a straight answer about where both go.

Your source text
Not retained. A fingerprint and a short excerpt are stored so the bridge has a title in your library; the material itself does not outlive the request that used it.
Your profile
Stored against your account, because a profile that lives on one laptop is a profile you answer again on the next one. Every answer is editable, and the whole thing is erasable, from Settings.
Your bridges
Kept so you can come back to one rather than rebuild it. Delete a single bridge or the entire library whenever you like — the delete is real, not a hidden flag.

Try it on the worst subject you have.

Not the one you already like. The one you have written off. That is the only honest test of any of this.