TheseusCodex

A research and investment firm that records how it reasons.

Theseus is a research and investment firm that records its reasoning — sources, claims, methods, objections, and revisions — in a private system called the Codex, and publishes the reviewed conclusions.

About the firm →
What it does

One pipeline

It runs one pipeline: a curated corpus yields principles, principles become algorithms applied to live observations, those produce conclusions, and the conclusions inform the bets the firm is willing to make.

   corpus ──▶ synthesizer ──▶ principles ──▶ algorithms
                                                  │
                              live observations ──┤
                                                  ▼
                                            conclusions
                                                  │
                                                  ▼
                                               memos
                                                  │
                                                  ▼
                                         portfolio agent
                                                  │
                                                  ▼
                                                bet
Live

What the machine is thinking right now

Quiet

No algorithm has fired and no memo has been published yet.

Read the firmMemosCurrentsForecasts

What it values

Three axioms

Progress

The future is a responsibility.

Rigor

First-principles reasoning under pressure.

Camaraderie

Disagreement as shared work.

Follow

Follow the firm

Subscribe to firm-wide digests

A digest of new publications, revisions, and retractions across every method and domain the firm runs. Double opt-in. One-click unsubscribe in every email. No tracking pixels.

Reach the firm at hello@theseuscodex.com.

Predictions are model-generated, source-grounded, and not financial advice. Live trading: DISABLED