Open Research Questions

Industrial Twin Lab publishes uncertainty instead of hiding it behind a product narrative. The initial catalogue is deliberately bounded to ten questions. Each question can accumulate hypotheses, experiments, negative results, replications, and revisions without being mistaken for a solved claim.

RQ-001

How much digital twin fidelity is actually required for predictive maintenance?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-002

When does physics-informed feature engineering outperform end-to-end deep learning?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-003

Can synthetic failures improve models without introducing dangerous simulation bias?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-004

Which features generalize across machines of the same class?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-005

How should confidence from simulation, historical evidence, and machine learning be combined?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-006

Can an AI Scientist autonomously design useful industrial experiments while remaining outside the control loop?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-007

How should Digital Twin uncertainty propagate into AI recommendations?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-008

Can fleet learning work without centralizing industrial raw data?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-009

How can organizations distinguish correlation, causality, and physical mechanism?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

RQ-010

What evidence should be required before an industrial AI model is allowed into production?

Status: conceptual. A useful answer must state its asset class, operating envelope, evidence sources, uncertainty, and conditions under which it fails.

Industrial Twin Lab maturity model

  1. Level 0 — Connected Asset

    Machine → Data. Data access is known; no inference claim is made.

  2. Level 1 — Observable Asset

    Machine → Data → Monitoring. Signals and quality limits are visible and traceable.

  3. Level 2 — Digital Twin

    Machine ↔ Digital Representation. The representation is verified and validated for a stated use.

  4. Level 3 — Twin Lab

    Twin → Simulation → Experiments. Experiments are isolated, reproducible, and limitation-aware.

  5. Level 4 — Machine Intelligence

    Twin + Experiment Fabric + AI Scientist + Fleet Learning. Recommendations survive independent validation and explicit engineering review.

Each level inherits the evidence, traceability, uncertainty, and human-authority obligations below it. Maturity is earned for a stated engineering use; it is not a software purchase.

Maturity is not a software purchase. P-101 does not advance because a model was trained; it advances only when evidence supports a defined engineering decision across relevant regimes. A higher level also inherits every lower-level obligation: data quality, traceability, simulation validity, uncertainty, and human authority.