The method
Our philosophy
Two old disciplines anchor everything here: Socratic inquiry, which draws out the real problem before any answer is attempted, and Popperian falsification, which trusts only what survives serious attempts to break it. The goal is not certainty — it is a good explanation with no known surviving criticism at the point the inquiry exits.
What we hold to
1
An inquiry, not an answer engine
Falsifai helps you understand the real problem, form a good explanation, expose it to criticism, and keep only what survives.
Most tools that promise to help you think do the thinking for you. They return an answer, wrap it in reassurance, and move on. Falsifai is built for the opposite purpose. It exists to help you understand the real problem, form a good explanation, expose that explanation to criticism, and retain only what survives.
That is a method, not a feature. An inquiry moves through a disciplined sequence: it draws out the real problem, strengthens that problem before testing it, pressures the problem until its hidden assumptions are visible, and only then architects the question that will actually be tested. A candidate explanation is created, exposed to criticism, and the criticism itself is tested in turn. The work continues until the inquiry exits under a recognised condition.
We hold to one promise above the rest: the product should leave you sharper than it found you. It is not a place to offload your thinking. It is a place to do your thinking more honestly, with a disciplined partner that refuses to let a comfortable conclusion pass unexamined.
2
Conjecture and criticism
Falsifai is grounded in Critical Rationalism. The aim is a good explanation with no known surviving criticism at the point the inquiry exits.
Knowledge does not grow by accumulating certainty. It grows by proposing bold explanations and then trying hard to find what is wrong with them. This is the tradition of conjecture and criticism, and it is the ground Falsifai stands on.
The aim of an inquiry is therefore modest and exact. It is not certainty. It is not a guarantee. It is a good explanation with no known surviving criticism at the point the inquiry exits. When an inquiry reaches that point, the honest thing to say is the plain thing:
No known criticism currently defeats this explanation.
Every explanation that survives remains provisional. New criticism may arrive later, from a source the inquiry never reached. If a new criticism defeats the surviving explanation, the right response is not to defend the old explanation with softer wording. The right response is to continue the inquiry. An explanation that survives is the best current account this inquiry could produce, held open to the next genuine challenge — never a final word dressed up as one.
3
Why we never put a number on an explanation
Falsifai never assigns a number to an explanation. No ratings, no rankings, no grades — explanations are not ranked against one another.
A number attached to an explanation feels like rigour. It is usually the opposite. A figure that claims to measure how much an explanation can be trusted invites you to stop thinking and read the digit instead. It smooths over exactly the disagreements that careful judgement needs to see.
So Falsifai never assigns a number to an explanation. There are no ratings, no rankings, and no grades. Explanations are not ranked against one another, and no figure stands in for the work of weighing a criticism. This holds everywhere — in what you read, in what the inquiry records, and in everything kept behind the scenes. The product will never tell you that an explanation is “strongly supported”, “low risk”, or “almost certainly right”. Such phrases borrow the authority of measurement without doing any of its work.
What replaces the number is a clear account in plain words. An inquiry tells you which criticisms an explanation faced, which it survived, which assumptions it rests on, and exactly what would have to be true for it to stop surviving. That is more honest than a figure, and far more useful: it tells you where to look next, rather than how relieved to feel.
4
Criticism, and what makes it decisive
A criticism is any challenge to a conjecture. A decisive criticism is one that, after being stress-tested, prevents the conjecture from surviving.
A criticism is any genuine challenge to a conjecture. Most criticisms are useful without being fatal: they sharpen an explanation, narrow its claims, or mark a boundary worth watching. A few are decisive. A decisive criticism is one that prevents the current conjecture from surviving as the best available explanation.
The difference is not a matter of tone. A criticism is not decisive merely because it sounds serious, arrives with conviction, or comes from an authority. It becomes decisive only after it is itself stress-tested and found to hold. Falsifai treats criticism as a claim to be tested, not a verdict to be accepted.
When a criticism is found to be decisive, the response matters. A decisive criticism must not be answered with softer wording or a cosmetic patch that leaves the explanation essentially intact. It must produce a substantively different explanation, or a recognised end to the inquiry. Smoothing a fatal objection into a footnote is precisely the failure this method is built to prevent. Each candidate explanation is exposed to plural, independent lines of criticism — does it answer the real problem, does reality disagree, can it be changed too easily, what must not be true, and does it hold together — before any of it is allowed to stand.
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Evidence and provenance
Falsifai never invents evidence. Every factual claim is traceable to its source, and gaps are marked honestly rather than filled with plausible support.
An honest inquiry is honest about what it knows. Falsifai never invents evidence, citations, sources, or observations. When evidence is unavailable, incomplete, or the search for it comes back weak, the inquiry says so plainly rather than filling the gap with plausible-sounding support. A confident sentence resting on nothing is worse than an admitted unknown.
Where factual claims matter, evidence is sought through targeted search, and any references used are preserved and shown to you where they bear on the result. Retrieved evidence does not prove an explanation. It supplies material for conjecture and for criticism — useful, but never decorative, and never attached afterwards to make a claim look more settled than it is.
Every factual claim an inquiry surfaces is traceable to one of four kinds of source: something you provided, something supported by external evidence, something reasoned out during the inquiry, or something relevant but not yet established. These distinctions stay visible. The inquiry will not present a reasoned inference, or an open unknown, as though it were an externally evidenced fact. Knowing where a claim comes from is part of being able to criticise it.
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The Survivor Brief
The Survivor Brief is the durable output of an inquiry — a record of what survived, why it currently works, what could defeat it, and what remains unknown.
An inquiry produces one durable artefact: the Survivor Brief. It is the record of what survived, assembled from the completed inquiry. It presents the best current understanding the inquiry could reach — and it never pretends to be the final truth.
The Survivor Brief has exactly one hero, the Survivor Theory: the last explanation that held before the inquiry exited. Earlier attempts, rejected paths, and the criticisms raised along the way are recorded in the trace of how the inquiry got here, not set beside the Survivor Theory as rival recommendations. There is one explanation in the foreground, and an honest account of the road behind it.
Around that centre, the brief does the work a number cannot. It states why the explanation works and which problem it answers. It names, in concrete terms, what would have to be observed for the explanation to stop surviving. It marks the boundary of what remains unknown, separating the unknowns that could move the explanation from those the inquiry has bounded. It notes where the explanation may reach further than its original problem, the genuinely new problems it exposed, and the criticisable next steps it justifies. And it always discloses why the inquiry ended.
A Survivor Brief is something you can share, return to, and challenge. It is built to be argued with. That is the point: it is a record of what survived criticism, held open to the next.