Agent-Skills.md

Agent Skills: Philosophy of Science Skill

Master philosophy of science - scientific method, explanation, realism, theory change. Use for: scientific methodology, explanation, realism/anti-realism, paradigms. Triggers: 'scientific method', 'falsification', 'Popper', 'Kuhn', 'paradigm', 'scientific explanation', 'scientific realism', 'instrumentalism', 'theory change', 'confirmation', 'induction problem', 'underdetermination', 'demarcation', 'reduction', 'emergence'.

UncategorizedID: chrislemke/stoffy/philosophy-of-science

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Name
philosophy-of-science
Description
"Master philosophy of science - scientific method, explanation, realism, theory change. Use for: scientific methodology, explanation, realism/anti-realism, paradigms. Triggers: 'scientific method', 'falsification', 'Popper', 'Kuhn', 'paradigm', 'scientific explanation', 'scientific realism', 'instrumentalism', 'theory change', 'confirmation', 'induction problem', 'underdetermination', 'demarcation', 'reduction', 'emergence'."

Philosophy of Science Skill

Master the philosophical foundations of science: What is scientific method? What is explanation? Are scientific theories true?

Core Questions

| Question | Issue | |----------|-------| | What distinguishes science from non-science? | Demarcation | | How do we confirm theories? | Confirmation | | What is scientific explanation? | Explanation | | Are theories true or useful fictions? | Realism | | How does science change? | Theory change |

Scientific Method

The Problem of Induction

Hume's Problem: How do we justify inductive inference?

  • Past regularities don't logically guarantee future ones
  • Cannot use induction to justify induction (circular)
  • Yet science relies on induction

Falsificationism (Popper)

POPPER'S FALSIFICATIONISM
═════════════════════════

DEMARCATION CRITERION
├── Science: Falsifiable claims
├── Pseudo-science: Unfalsifiable
└── Examples: Astrology, Freud (unfalsifiable)

METHOD
├── Bold conjectures
├── Severe tests
├── Refutation → new conjecture
└── Corroboration ≠ confirmation

KEY IDEA:
We never confirm theories
We only fail to falsify them
Asymmetry: One counterexample refutes

Problems:

  • Theories rarely abandoned on single refutation
  • Auxiliary hypotheses can absorb refutation
  • No purely observational test

Paradigms (Kuhn)

KUHN'S STRUCTURE OF SCIENTIFIC REVOLUTIONS
══════════════════════════════════════════

NORMAL SCIENCE
├── Work within paradigm
├── Puzzle-solving
├── Anomalies accumulate
└── Paradigm defines problems, methods

CRISIS
├── Too many anomalies
├── Alternative paradigms emerge
├── Debate between paradigms
└── Incommensurability

SCIENTIFIC REVOLUTION
├── Paradigm shift
├── Not cumulative progress
├── New worldview
└── Gestalt switch

EXAMPLES:
├── Ptolemy → Copernicus
├── Newton → Einstein
└── Phlogiston → Oxygen

Scientific Explanation

Deductive-Nomological (D-N) Model

D-N MODEL (Hempel)
══════════════════

EXPLANATION STRUCTURE:
L₁, L₂, ... Lₙ  (Laws)
C₁, C₂, ... Cₙ  (Conditions)
─────────────────
E              (Explanandum)

REQUIREMENTS:
├── Deductively valid
├── Laws are essential
├── Empirically testable
└── True premises

EXAMPLE:
All metals expand when heated.
This is metal.
This was heated.
∴ This expanded.

Problems:

  • Symmetry problem (flagpole and shadow)
  • Irrelevance problem
  • Statistical explanation

Causal-Mechanical Model

  • Explanation = tracing causal mechanism
  • Not just subsumption under laws
  • Mechanisms explain, not just correlate

Unificationism

  • Explanation = unifying diverse phenomena
  • Fewer patterns explaining more
  • Newton unified celestial and terrestrial motion

Scientific Realism

The Debate

Scientific Realism:

  • Mature scientific theories are approximately true
  • Theoretical entities (electrons, genes) exist
  • Science aims at truth

Anti-Realism (Instrumentalism):

  • Theories are useful tools
  • Theoretical terms don't refer
  • Science aims at empirical adequacy

Arguments for Realism

No Miracles Argument:

  • Science's success would be miraculous if theories weren't true
  • Best explanation of predictive success is truth
  • "The only philosophy that doesn't make science a miracle"

Arguments Against Realism

Pessimistic Meta-Induction:

  • Past "successful" theories were false
  • Caloric, phlogiston, ether
  • Current theories probably also false

Underdetermination:

  • Multiple theories compatible with same evidence
  • Evidence doesn't uniquely determine theory
  • Why think ours is true?

Structural Realism

Epistemic: We can know structure, not nature Ontic: Structure is all there is

Reduction and Emergence

Reductionism

  • Higher-level sciences reducible to lower
  • Biology → Chemistry → Physics
  • Unity of science thesis

Emergence

  • Some properties not reducible
  • Whole greater than parts
  • Consciousness? Life?

Multiple Realizability

  • Same higher-level state, different lower-level realizations
  • Pain in humans ≠ pain in octopi (neurally)
  • Blocks type-identity reduction

Key Debates

Demarcation

  • What makes something science?
  • Falsifiability? Paradigms? Method?
  • Is demarcation possible?

Theory Choice

  • Empirical adequacy
  • Simplicity, parsimony
  • Explanatory power
  • Fruitfulness

Values in Science

  • Value-free ideal achievable?
  • Social influences on science
  • Science studies, feminist philosophy of science

Key Vocabulary

| Term | Meaning | |------|---------| | Falsification | Disproving through counterevidence | | Paradigm | Shared framework for research | | Incommensurability | Paradigms can't be compared | | Confirmation | Evidence supporting theory | | Underdetermination | Evidence doesn't determine theory | | Instrumentalism | Theories are tools, not truths | | Reduction | Higher explained by lower | | Emergence | Irreducible higher-level properties | | Demarcation | Distinguishing science from non-science | | Corroboration | Surviving falsification attempts |

Integration with Repository

Related Themes

  • thoughts/knowledge/: Scientific knowledge
  • thoughts/consciousness/: Neuroscience methodology