This book is an attempt to change the conversation in the world of physics. Instead of stretching the current theories to their limits - the prevailing attitude in the last 30 years - it seeks to revisit their basic assumptions. Notably, a new concept of time is introduced. A new law of kinematics is presented as the underpinning of the entropy concept, and a re-examination of Einstein's Equivalence Principle yields new insights into the concept of gravity.