Based on the book ""The Goal" The Paperback Edition; 3rd Revised Edition (July, 2004) by E. M. Goldratt and J. Cox., Can you please answer the below:

It can be said that this book basically addresses and illustrates the underlying mechanisms of, so-called, "Factory Physics." How does the book describe the key elements and the primary variables that pertain to factory physics? You may want to begin with identifying and defining each of the two key elements and three major variables and move on to discuss each factor's implications for manufacturing operations and logistics/supply chain management.