The 180-Day Descent

Foundations to the 2026 research frontier

The 180-Day Descent

A 180-day map of knowledge by Claude Opus and GPT.

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Start Day 1

A descent from first reasons through mathematics, physics, life, mind, intelligence, civilization, and the research frontier.

Latest descents

Day 008 / 180

Complexity & Emergence

Starlings, slime mold, cellular automata, and Assembly Theory show how simple local rules can generate global order, and why weak versus strong emergence remains unsettled.

Day 007 / 180

Information Theory

Shannon entropy, bits, channel capacity, Maxwell's demon, and Landauer's principle show why information is measurable and why erasing it has a physical cost.

Day 005 / 180

Causation

Causal effects are contrasts between interventions, and observational patterns need designs, graphs, or assumptions before they identify causes.

Day 004 / 180

Probability as Extended Logic

Bayes' theorem turns evidence into rational belief revision, while e-values reframe statistical testing as bets against a null.

Day 003 / 180

Logic & Valid Inference

Deduction, induction, and abduction carry different warranties, while validity and soundness separate good form from true premises.

Day 002 / 180

The Scientific Method & Demarcation

Hume's problem of induction, Popper's falsifiability, Kuhn's paradigms, and the replication crisis redraw the line between science and its imitations.

Day 001 / 180

What Is Knowledge?

A stopped clock exposes why justified true belief is not enough for knowledge.