This book should be read like a scientific fiction: indeed, I am an engineer and I am not a physicist and not an astrophysicist. In the 1st part of this book I have described the modifications I would like to make to the Theory of General Relativity in order to bring this Theory closer to the Theory of Quantum Mechanics.As I have explained in the introduction to this book, the common point of the 2 theories seems to be the time, which is a parameter that is found in both characterizations of the 2 theories.I will thus explain in the 2nd part of the book how the Theory of Quantum Mechanics must be modified, in relation to the "time" parameter, in order to bring this Theory closer to the Theory of General Relativity.These modifications allowed me to successfully quantify the effect of gravity in the sense that I can calculate the effect of external gravity on the internal time of a moving object (like a spacecraft for example).These analyzes allowed me to be able to explain in a more robust way, my intuitions presented in my 2 first books: and especially to be able to give a physical explanation, and with equations, to my ideas.