The Order of Time

Résumé du livre

Carlo Rovelli is an Italian theoretical physicist known for his work in the field of quantum gravity and theoretical physics. He is particularly recognized for his contributions to loop quantum gravity, a theoretical framework that aims to reconcile general relativity (which describes the force of gravity) with quantum mechanics (which describes the behavior of particles at very small scales).

Our understanding of time is deeply intertwined with energy, entropy, and perspective. While energy is conserved and cannot be created or destroyed, it is the concentration of low-entropy energy that drives change, as seen in the processes powered by the sun. This increase in entropy underpins the flow of time and the progression of history. Einstein’s theory of relativity revealed that time is not absolute but relative, varying with motion and location, challenging our traditional notions of "now." Modern physics further complicates this view, showing time as granular, uncertain, and relational, emerging from our perception of change and entropy. Scientists see the world not as static objects but as a series of events, with even enduring entities like stones ultimately breaking down over time. Our personal connection to time is shaped by our perspective, memory, and tendency to organize experiences into narratives, making time a fundamental part of human identity and understanding.

"An overly pragmatic attitude is not productive on the long run."

"For everything that moves, time passes more slowly."

"You don’t get to new places by following established tracks."

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