3.1 Problems of Big Bang Cosmology 29 of Alan Guth on inflation [44], considered the effect of magnetic monopole creation during a GUT phase transition in the very early Universe. Any monopoles that are produced in the very early Universe must neither spoil the success of BBN nor be in direct tension with observations of such particles. An abundant creation of monopoles in the early Universe would have the affect of overclosing the Universe. Therefore, we must have the situation where either any such model of the very early Universe does not produce too many relics or there must exist some mechanism such that these are not in conflict with our observations, such as having them be diluted away somehow. It is clear that there exist many more particles than anti-particles in the Universe. However, there is no explicit mechanism in the Hot Big Bang model itself that can account for this Baryon Asymmetry and according to the model, identically equal amounts of matter and anti-matter should have been created in the early Universe. 3.1.4 Baryon Asymmetry Problem 3.1.5 Initial Perturbation/Structure Problem Lastly, there is the issue of the creation of the LSS of the observable Uni- verse. Assuming just an expanding FLRW Universe, there arises the question of how the observable structure in the Universe came into existence, as this expanding spacetime is exactly homogeneous and isotropic. Although our observable Universe is highly homogeneous and isotropic on cosmological