Five works · Six editions · 2009–2019
Physics without the folklore.
Five works—and one Spanish-language edition—that approach relativity, quantum theory, entropy, time, and reality through physical intuition and philosophical clarity.
Complete catalog
Ideas before equations.
Felix writes for readers who want difficult scientific ideas made intelligible without having their depth reduced. The books move from relativity into a four-volume investigation of quantum physics and reality.
Why the books exist
To demystify—and defolklorize.
Felix’s books set out to dismantle the aura of mystery and incomprehensibility surrounding relativity, quantum physics, and science more broadly. They examine the popular—and sometimes scientific—beliefs that have accumulated around modern physics, especially claims that borrow Einstein’s prestige to justify ideas far beyond what the theories actually say.
The premise is simple: never underestimate the intelligence of the nonscientific reader. Semantics and epistemology are therefore not decorative philosophical additions; they are essential tools for distinguishing clear physical meaning from inherited folklore.

Relativity free of Folklore
Galloping with Light
Einstein, Relativity, and Folklore
Also available in Spanish as Cabalgando con la Luz
A concept-first journey through Einstein's Special Theory of Relativity and the assumptions that so often obscure it.
- Edition
- English and Spanish editions
- Language
- English & Spanish
- ISBN-13
- See both editions

Quantum Physics free of Folklore · Book 1
Records of the Future
Classical Entropy, Memory, and the 'Arrow of Time'
An inquiry into entropy, memory, prediction, and why time appears to have a preferred direction.
- Edition
- 2013
- Language
- English
- ISBN-13
- 9781520427881

Quantum Physics free of Folklore · Book 2
Aiming at REALITY
Statistical Entropy, Disorder, and the Quantum
From statistical entropy to wavefunction collapse, a challenge to the usual shorthand surrounding quantum theory.
- Edition
- 2017
- Language
- English
- ISBN-13
- 9781520421759

Quantum Physics free of Folklore · Book 3
Nighing REALITY
Quantum Fusion after 25 Years of Confusion
A further step toward the elusive notion of reality through quantum states, superposition, and entanglement.
- Edition
- 2018
- Language
- English
- ISBN-13
- 9781981040339

Quantum Physics free of Folklore · Book 4
Elements of REALITY
1925–1935: The Onset of an Unfinished Philosophical Struggle
The formative decade of quantum theory and the still-unfinished dispute over what the theory says is real.
- Edition
- 2019
- Language
- English
- ISBN-13
- 9781698060613