From the dawn of civilization Humans struggled to understand and explain their environment. The process of that struggle resulted in various branches of investigations and knowledge, which Humans denote as Science. Because the Human mind, which created this Science, is by itself composed of components which might be the same components that the environment is also composed of, Humans might be bound to never being able to understand and explain completely this environment, which is also denoted as the Existence, because one cannot explain an issue, if that explanation relies on this same issue. Nevertheless, Humans were still able to build a magnificent structure, of knowledge and explanations, which, as mentioned above, is denoted as Science which is still an ongoing endeavor, which continuously expands, reveals and explains more and more secrets embedded in the Existence. However, the nowadays Physics, which is the branch of Science which specifically focuses on understanding and explaining the Existence, is still composed of branches which are not fully compatible. One of these branches is the branch denoted as the Classic Physics, which focuses on understanding and explaining what is denoted as the Macroscopic Environment. Another such branch is the branch denoted as the Quantum Physics, which focuses on understanding and explaining what is denoted as the Microscopic Environment. And, as presented above, these two branches of Physics are not fully compatible, and Humans are still struggling, to expand the knowledge that might bridge the gap that still exists between these two branches of Physics. Moreover, even the branch of the Classic Physics itself, still embeds branches which are also not fully compatible, as for example, the Gravity and the Electromagnetism, and more must be done to bridge the gap that exists also between these two branches, which both belong, as stated above, to the branch of the Classic Physics. In the process of building the above-mentioned magnificent structure of Science, Humans detected in the Existence various components, and denoted these components as Entities, and used these Entities as the building blocks on which the Science of Physics was constructed. Two such Entities are the Entity of Space and the Entity of Time, which together were interweaved into one Entity, denoted as Einstein's four-dimensional Interwoven Space-Time Entity, by the Relativity Theories of Einstein. (Truncated by viXra Admin to <400 words)