The Restless Philosophy of Science
Changing Theories, Contested Evidence, and the Search for Truth
Science is supposed to be the reliable one. It observes the facts, tests its theories, corrects its errors, and moves steadily toward the truth—at least according to the version found in school textbooks, institutional press releases, and speeches delivered shortly before the evidence becomes complicated.
The Restless Philosophy of Science explores what really happens when theories change, experiments fail, experts disagree, and evidence supports more than one explanation. Through famous disputes and scientific revolutions—from phlogiston and planetary motion to evolution, medical evidence, continental drift, replication, and manufactured doubt—the book examines how scientific knowledge is actually made.
Why do scientists preserve theories that appear to have been falsified? Can observations ever be neutral? What makes one explanation better than another? Is scientific consensus trustworthy? Do social values corrupt objectivity, or help make it possible? And if successful theories have repeatedly been replaced, why should we believe the theories accepted today?
Written with clarity and without unnecessary ceremony, the book introduces the central ideas of Karl Popper, Thomas Kuhn, Imre Lakatos, Paul Feyerabend, and other major thinkers without turning the discussion into a procession of important surnames. Abstract questions are grounded in historical cases, contemporary controversies, and the inconvenient details that simplified accounts of “the scientific method” tend to misplace.
- Author
- Quim Aiguafreda
- Published
- August 6, 2026
- Pages
- 211
- Language
- English
- ISBN
- 979-8191105765
Thinkers discussed
From the opening pages
Science is often introduced as a four-step procedure: observe, hypothesize, test, conclude. A careful person looks at nature, notices a pattern, proposes an explanation, performs an experiment and accepts the result. If the hypothesis fails, it is discarded with dignity. If it succeeds, a fact is added to Knowledge, presumably after the appropriate form has been signed.
Scientists do observe, speculate, test and conclude. The trouble begins when these activities are presented as a fixed sequence. Scientists have begun with speculation, reused other people’s data, trusted indirect evidence, ignored apparent refutations and invented mathematical objects before anyone could observe them. The textbook method contains genuine ingredients, but so does a shopping bag. It is not yet a recipe.
Dmitri Mendeleev offers a useful example. By the 1860s, chemists knew more than sixty elements and possessed a disorderly collection of facts about their atomic weights and chemical behaviour. The inherited measurements did not always agree.
Contents
7 chapters
The Trouble Begins
- The Textbook Method and Other Historical Curiosities
- When the Evidence Was Obvious and Everyone Missed It
- Theories That Died Several Times and Continued Working
- If Science Changes, Why Believe It?
Evidence Does Not Speak
- The Telescope Was Clearly Lying
- Facts Arrive Wearing Theoretical Clothing
- One Experiment, Twelve Assumptions, and a Loose Cable
- The Black Swan Applies for Reconsideration
- Saving the Theory, Respectably and Otherwise
- Underdetermination: More Than One Story Fits the Clues
Why Some Theories Win
- Simplicity, Elegance, and Other Scientific Compliments
- Prediction: The Intellectual Victory Lap
- Explanation: Because “It Happens” Felt Incomplete
- Prediction Without Understanding
- Mechanisms: Opening the Black Box and Finding Smaller Boxes
- Inference to the Best Explanation, According to the Judges
Scientific Revolutions and Organized Disobedience
- Normal Science and the Benefits of Not Questioning Everything
- Anomalies: Please File Under “Future Difficulty”
- Crisis, or an Excess of Future Difficulties
- Revolutions Do Not Submit Change Requests
- Incommensurability Without Intellectual Solitary Confinement
- Lakatos Builds a Better Security System
- Feyerabend Arrives Without a Permit
Cases in Scientific Restlessness
- Phlogiston: A Theory Too Useful to Be Ridiculous
- Newton’s Triumph and Mercury’s Insubordination
- The Continents Move, Eventually
- Semmelweis and the Etiquette of Being Right Too Early
- Evolution Before the Genes Arrived
- Smoking, Cancer, and the Demand for Impossible Proof
- The Replication Crisis Replicates a Familiar Problem
Science Is Social, Regrettably Because Scientists Are People
- Objectivity Is Not a Personality Type
- Peer Review and the Ceremony of Qualified Approval
- Consensus Without Revelation
- Values Enter Through the Side Door
- Whose Ignorance Became the Standard?
- Manufactured Doubt
Truth After the Wreckage
- Realism: Taking Successful Theories Personally
- What Survives a Revolution?
- Progress Without a Final Destination
- The Search for Truth, Still Inconveniently Open
