The Origin Of Universe
...a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me."
Sir Isaac Newton
Fifteen billion years ago, the entirety of our universe was compressed into the boundaries of an atomic nucleus. Known as the cosmic egg, or nutshell, or, more scientifically, as singularity, this is the moment before creation when space and time did not yet exist. According to the general cosmological models that explain our universe, an indescribable explosion, trillions of degrees in temperature on any measurement scale, created not only fundamental subatomic particles and thus matter and energy, but also space. Precisely at that point, the counter variable time started increasing, i.e. time was created. At this point in space and time the universe was extremely compact, dense, and hot, and the first three minutes determined the drastic change to what previously was the eggshell.
Because of the big explosion, the universe, as a unity of four dimensions, started to expand in every direction. This explosion is explained specifically by the famous theory of Big Bang. This is the most credible theory, as it is the only one supported by Einstein's General Theory of Relativity, and Hubble's Law on the Expansion of the Universe. Big Bang explains the initialization of space and time, the two main factors that did actually give a form to the universe. Nonetheless, the main problem arose when scientists started arguing about the structure of the universe basing their arguments on the Big Bang. As the universe started expanding because of the big explosion, it must have given a certain form or structure to the universe. A simple question was asked: "What is that structure like?" At that point, three main theories arose: the theories supporting the open structure, the flat structure, and the closed...
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