Because I loved The Order of Time, I decided to buy this book to see what's new in Rovelli's research. Rovelli does not perceive the current crisis in theoretical physics to be a failure. He argues instead that we need a different set of assumptions of our foundational concepts of reality. I have followed the catastrophic diversion of physics into string theory, where most published literature abandoned scientific method and created math they called "theory" that cannot generate any disprovable hypotheses from observation or measurement. Rovelli's prose has an elegant economy; his arguments accumulate through image and precision rather than polemic. I really enjoy it.
Rovelli's core idea rests on a relational ontology: Systems possess properties only relative to other systems, a position he draws from relational quantum mechanics, and this claim reframes time, causation, and substance. This reframing rejects the fantasy of a platonic God's-eye view, and this rejection extends to Spinoza's proposition that gives this volume its title. A carburetor, an atom, a stone, and a thought each possess validity through its own perspective and description, without a fundamental division between culture and nature, mental and physical, living and nonliving. It is explosive because of the way it replaces the adversary of dogmatic reductionism, not with a portrait of malice, but with a portrait of innocent apparatchiks trapped in an insular system, thinkers who mistake partial description for final foundation, and this distinction preserves civil charity while sharpening critique. I appreciate this humility as a stance that prefers partial, impermanent knowledge to a theory of everything.
This book moves from relational quantum mechanics to the crumbling of universal time, then to a web of events where cause and effect serve as human carving tools, then to a Spinozian equality of descriptions where Nagarjuna and Zhuangzi enter as commenters, and this sequence culminates not in a final foundation but in an invitation to curiosity.
His conclusions are convincing because of the rigor with which Rovelli treats partial knowledge. It is an invitation to creative attention rather than failure. I value Rovelli's precision over popular science polemic; Rovelli's books rank among my favorites in that genre.
5/5 Stars