Scientists' greatest pleasure comes from theories that derive the solution to some deep puzzle from a small set of simple principles in a surprising way. These explanations are called "beautiful" or "elegant". Historical examples are Kepler's explanation of complex planetary motions as simple ellipses, Bohr's explanation of the periodic table of the elements in terms of electron shells, and Watson and Crick's double helix. Einstein famously said that he did not need experimental confirmation of his general theory of relativity because it "was so beautiful it had to be true."
WHAT IS YOUR FAVORITE DEEP, ELEGANT, OR BEAUTIFUL EXPLANATION?
Since this question is about explanation, answers may embrace scientific thinking in the broadest sense: as the most reliable way of gaining knowledge about anything, including other fields of inquiry such as philosophy, mathematics, economics, history, political theory, literary theory, or the human spirit. The only requirement is that some simple and non-obvious idea explain some diverse and complicated set of phenomena.
Here are some of my favorites ....
My Favorite Annoying Elegant Explanation: Quantum Theory by Raphael Bousso
Life Is a Digital Code by Matt Ridley
Plate Tectonics Elegantly Validates Continental Drift by Paul Saffo
Watson and Crick Explain How DNA Carries Genetic Information by Gary Klein
Atomism: Reconciling Change with No-Change by Marcelo Gleiser
The 19th Century Explanation of the Remarkable Connection Between Electricity And Magnetism by Lawrence M. Krauss
We Are Stardust by Kevin Kelly
The Principle of Empiricism, or See For Yourself by Michael Shermer
Here are some of my not-so-favorites ....
Fitness Landscapes by Stewart Brand
Sexual Conflict Theory by David M. Buss
Pascal's Wager Tim O'Reilly
Epigenetics by Helen Fisher
Evolutionarily Stable Strategies by S. Abbas Raza
The Destructive Wrath of the General Purpose Computer by Jordan Pollack
Subverting Biology by Patrick Bateson
Sex At Your Fingertips by Simon Baron-Cohen
The Epidemic of Obesity, Diabetes and "Metabolic Syndrome:" Cell Energy Adaptations in a Toxic World? by Beatrice Golomb
Why We Feel Pressed for Time by Elizabeth Dunn
Why Some Sea Turtles Migrate by Daniel C. Dennett
Evolutionary Genetics Explains The Conflicts of Human Social Life by Steven Pinker
The Faurie-Raymond Hypothesis by Jonathan Gottschall
The Gaia Hypothesis by Scott Sampson
The Elegant Robert Zajonc by Richard Nisbett
