The universe began from an event which human understanding knows to have happened, but which is difficult to define. Space and time suddenly emerged for reasons unknown, within a infinitesimally small area, and suddenly expanded, releasing immense light energy and heat (i.e. ‘inflation’). This process was not an explosion in the conventional sense, as an ordinary explosion requires a change of pressure. The above photograph shows the process of the ‘big bang’ from year 0 – 370,000 years (around 18.7 billion years ago). This is a hot ball of plasma, within which areas are beginning to cool and condense into solid matter. This process produces matter as light energy slows down. This matter has been thrust outward at tremendous speed, and over-time, has created the physical universe (the earth was formed around 4.9 billion years ago). When matter is formed, gravitational force is generated (as a side-effect) which pulls all galactic objects into a rounded shape (due to gravity operating in all directions). Gravitational pull generated by a sun, for instance, also sets the orbits for all the planets (and other objects) to circumnivigate through, in any given solar system. The entire universe appears to rotate around a theoretical centre-point at the heart of existence. As matters stand, human science does not know what caused the big bang, or what exists beyond the light horizon. As there is no data to analyse, or experiments that can be carried-out, everything beyond this point of understanding is purely speculative (with one theory being as valid as anyother). The big bang was probably not a ‘big bang’ – as nothing seemed to exist before this event – or exist in a manner that humanity can currently perceive and understand. Why and for what reasons the physical universe emerged are unknown, but one-day this will be known. There probably is something beyond the light horizon, and there was probably some kind of existence prior to the emergence of the physical universe. Or, it might be that concepts such as ‘existence’ and ‘non-existence’ have no ultimate meaning, and that humanity is looking at existence from an incorrect interpretive position, or utlilising a flawed logic. What is known, is that space at this current time is beginning to speed-up in its expansion rate, and that this expansion of space will continue forever, or what humanity perceives to be ‘forever’. If multiple universes exist, it could be that the universe that humanity inhabits is just one amongst many, with each having its origin through a ‘big bang’ event. As human science is premised upon immutable laws, its understanding is limited to the observation of light. If material (of whatever kind), exists beyond what humanity can see through the observation of ‘light’ (i.e. the ‘light cone’), then as long as human science remains focused upon the observation of light, any reality beyond the light horizon will remain beyond what can be observed and measured. The human universe can probably be defined as having a boundary – the true extent of which cannot be observed through the measuring of light – but it might also be true that the pattern of material universal existence could be repeated infinitely throughout reality, so that there could be many such universes. This feeds into the multi-verse theory and the idea of parallel universes. The point is that anything and everything could have happened before the big bang, but it has been the big bang that has served as the basis of the material reality within which humanity exists and has evolved.