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Chapter 11. Objectivity and the Philosophy of Science

§3 Demarcation: Science vs. Pseudoscience

One of the most vital tasks for a Reasonable Person is the “Demarcation Problem”: distinguishing between legitimate science and Pseudoscience. Pseudoscience (meaning “false science”) consists of claims that use the language and trappings of science—using words like “energy,” “vibration,” or “quantum”—without adhering to the rigorous logical methods that define scientific inquiry.


3.1 Falsifiability: The Popperian Standard

The philosopher Karl Popper famously argued that the defining mark of science is not “confirmation” (finding evidence that agrees with you), but Falsifiability.

  • The Logic of Risk: A scientific theory must make “risky” predictions. It must state clearly what cannot happen if the theory is true. For example, Einstein’s theory was scientific because it predicted light would bend; if the light hadn’t bent during the eclipse, his theory would have been proven wrong.

  • The Trap of Pseudoscience: Pseudoscientific theories are often “all-explaining.” They are so vague or flexible that no matter what happens, the theory can be “adjusted” to fit.

    • Example: If an astrologer predicts “you will face a challenge today,” and you stub your toe, the theory is “confirmed.” If you have a great day, they might say “your positive energy overcame the challenge.” Because nothing can prove the claim wrong, it isn’t science.


3.2 Progressiveness vs. Stagnation

Thomas Kuhn and Imre Lakatos added another layer to demarcation: how a field of study handles “anomalies” (facts that don’t fit the theory).

  • Science is Progressive: When a scientist finds data that contradicts their theory, they eventually move toward a “Crisis” and a “Revolution” (Section 5). Science grows by discarding old ideas that no longer work.

  • Pseudoscience is Stagnant: Pseudoscientific fields tend to remain unchanged for centuries (like alchemy or palmistry). Instead of solving puzzles or updating their “paradigm,” they ignore conflicting data or attack the motives of the skeptics who point it out.


3.3 The Warning Signs (Red Flags)

To distinguish between the two, look for these common hallmarks of pseudoscience:

  1. Lack of Peer Review: Claims are released directly to the media or sold as products before being scrutinized by other experts.

  2. Ad Hoc Hypotheses: Every time the theory is proven wrong, a new “special excuse” is added to explain away the failure.

  3. Over-reliance on Anecdotes: Using “testimonials” (e.g., “It worked for me!”) rather than controlled, double-blind studies.

  4. Absence of Self-Correction: The core dogmas of the field are never questioned or updated, regardless of new discoveries in related fields like biology or physics.


§3 Summary Table: The Demarcation Test

Feature Science Pseudoscience
Evidence Seeks to disprove its own claims. Seeks only confirming evidence.
Language Precise and measurable. Vague, “scientific-sounding” jargon.
Evolution Changes and grows over time. Remains static and dogmatic.
Failures Leads to new theories and discovery. Explained away with “special excuses.”

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How to Think For Yourself Copyright © 2023 by Rebeka Ferreira is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, except where otherwise noted.