Invariant does not record what people say they believed.
It records what their capital repeatedly depended on — and shows how exposed they are if that dependence fails.
It hardens through reuse. By the time capital is meaningfully at risk, no one can trace how it got there.
Invariant is built on one locked primitive. Everything else follows from it.
An artefact becomes load-bearing only when two conditions are met simultaneously:
Artefacts that persist without being tested are explicitly labelled: persistent but untested. This is not failure — it is information about current exposure.
Passively records which components decisions actually used — not what was later claimed in a narrative.
Shows which load-bearing artefacts have been tested under removal, substitution, or retuning — and which have not.
Any past decision can be reproduced exactly as it existed — not as it is remembered under scrutiny or success.
One concrete output. Produced automatically when capital exposure changes. Answers the question no post-mortem can.
| Component | Probe type | Coverage | Status |
|---|---|---|---|
| Dataset A | Removal / substitution | None | UNTESTED |
| Liquidity cost model | Alternative cost simulation | 1 of 3 regimes | PARTIAL |
| Decay parameter | Retuning sensitivity | ±20% range only | PARTIAL |
| Vol regime filter | Regime switching test | Full coverage | TESTED |
Current exposure relies most heavily on Dataset A. That dependence has never been tested under removal or substitution. If invalidated, approximately 40% of factor exposure is affected simultaneously. This is not a recommendation — it is a record of what is load-bearing and what is not.
No forms. No confessions. No acknowledgements. Just: what this depended on.
The forces creating this gap are structural — and widening.
The buyer is specific.
CIOs and Heads of Risk at quant desks and multi-strat funds (AUM £500m–£10bn). They own the scrutiny problem and the LP relationship.
Quant researchers and model risk leads who live inside the causal chains. They understand the pain without explanation.
COO or CFO where LP relationships are at risk. Invariant is auditable infrastructure — not a product line.
The prototype is no longer a concept. Invariant generates Evidence Bundles today — across three realistic fund scenarios — with a public demo anyone can run.
Working demo live on nbviewer. Three fictional but mechanically realistic fund scenarios. Evidence Bundles, dependency graphs, counterfactual tests, and probe coverage tables — generated automatically. Publicly accessible, no setup required.
Full source code on GitHub. The engine, scenarios, and notebook are public. Clone it, run it, inspect the logic. github.com/wannabequantcmugz/Invariant
Product landing page live. axiomcapitalresearch.com/invariant.html — deck, demo, and GitHub accessible in one place. Built to the same standard as this deck.
Practitioner outreach underway. Initial contact made with quant researchers at systematic funds. The single question being validated: does the problem of untraceable decision dependence exist at your desk?
Zero direct competition confirmed. Compliance tools are retrospective. Audit workflows are narrative. Model risk platforms don't track dependence under reuse. The gap is real, unoccupied, and now demonstrable.
"What assumption are we most exposed to right now?"
That question is rarely answered structurally. Invariant exists to make answering it a procedure — not a post-mortem.
Founder-led sales into UK quant desks. 60-day pilots with proof-of-value metrics agreed upfront. First live exposure replay is the singular milestone.
We are not claiming epistemic authority over markets. We claim to know — precisely and reproducibly — what decisions depended on. That is a smaller, testable, expandable wedge.
Invariant becomes the infrastructure layer that makes learning survive power, pressure, and success. Not to assign blame. Not to enforce virtue. To make reliance legible.
The core concept — dependence under reuse, elevated by counterfactual consequence — is precise enough to build on and defend. Everything else follows from it.