The ‘Big Bang’ is the prevailing theory in cosmology. It was first formulated by the aid of some observations made by an American Astronomer called Edwin Hubble. While Hubble was trying to understand the size of the universe, he observed immensely luminous stars called Cepheid Variables and noticed something peculiar. He observed that some of these stars were further away than initially anticipated, and that their colour was slightly changed, shifting towards red, something now known as red-shift. From Hubble’s observations we were able conclude that everything seems to be moving away from each other, in other words the universe is effectively expanding. As time moves on the universe continues to expand, but if time is reversed, the theory is that everything starts to coalesce and come together. Coupled with the discovery of cosmic microwave background radiation, which is the radiation uniformly filling the observable universe, the idea of the ‘Big Bang’ was born. In other words the universe began at a cataclysmic event which created space-time and all matter in the universe. The physicist P. C. W. Davies explains, “If we extrapolate this prediction to its extreme, we reach a point when all distances in the universe have shrunk to zero. An initial cosmological singularity therefore forms a past temporal extremity to the universe. We cannot continue physical reasoning, or even the concept of spacetime, through such an extremity. For this reason most cosmologists think of the initial singularity as the beginning of the universe. On this view the big bang represents the creation event; the creation not only of all the matter and energy in the universe, but also of spacetime itself.”[4] Although our understanding of what happened 10-43 seconds after the ‘Big Bang’ is highly speculative, astrophysicists now concede little doubt that this universe in which we live is the aftermath of the emergence and expansion of space-time, which occurred approximately 14 billion years ago. John Gribbin, an astrophysicist at Cambridge University, summarises the importance of ‘Big Bang’ cosmology, “…the discovery of the century, in cosmology at least, was without doubt the dramatic discovery made by Hubble, and confirmed by Einstein’s equations, that the Universe is not eternal, static, and unchanging.”[5] Thus the ‘Big Bang’ model describes our universe as having a beginning a finite time ago. As Alex Vilenkin, one of the world’s leading theoretical cosmologists, writes, “It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man. With the proof now in place, cosmologists can no longer hide behind the possibility of a past-eternal universe. There is no escape, they have to face the problem of a cosmic beginning.”[6] Other models have been proposed to try and explain away the obvious metaphysical questions that arise from a finite universe, for instance P.C.W. Davies questions, “What caused the big bang? . . . One might consider some supernatural force, some agency beyond space and time as being responsible for the big bang, or one might prefer to regard the big bang as an event without a cause. It seems to me that we don’t have too much choice. Either…something outside of the physical world…or…an event without a cause.”[7] These models include the oscillating and vacuum fluctuation models. These models however still have principles that necessitate a beginning to the universe, in other words they are non-infinitely extendable into the past. Take the oscillating model as an example, this model maintains that if the gravitational pull of the mass of the universe was able to surmount the force of its expansion, then the expansion could be changed into a cosmic contraction or ‘Big Crunch’, and then into a new expansion, with the process continuing ad infinitum. However, there are a few issues with this model, 1. Firstly there is nothing available in modern physics that would allow a universe that is collapsing to spring back into a new expanding universe. 2. Secondly the mean mass density of the universe, derived from observational evidence, has shown that it is not enough to develop the required gravitational force to stop and reverse the expansion of the universe. 3. Thirdly, the second law of thermodynamics (as discussed above) implies the finitude of the universe. According to the oscillation model, the entropy is conserved from cycle to cycle of the various oscillations of expansion, crunch and expansion. This has the effect of generating larger and longer oscillations. Therefore the thermodynamic property of this model implies a beginning, as the universe that we exist in has not suffered a heat death, or thermodynamic equilibrium. Since we have presented good evidence that the universe began to exist. We can now address the logically possible explanations the Qur’an presents as rationalisations of the origins of the universe. Created or brought into being from nothing We know the universe couldn’t have come out of nothing, because out of nothing, nothing comes! This is an undeniable philosophical principle, as P. J. Zwart in his publication About Time explains, “If there is anything we find inconceivable it is that something could arise from nothing.”[8] A significant point to raise here is that nothingness should not be misconstrued as the nothingness that some physicists talk about. The term nothingness in this context refers to the absence of anything physical, in other words there is no pre-existing ‘stuff’. In light of the beginning of the universe, there was absolutely nothing before it began to exist, which is why physicists have explained the universe as having a space-time boundary. However, nothingness as defined by some physicists relates to the quantum vacuum. This is misleading because the quantum is something. In quantum theory the vacuum is a field of energy pervading the whole of the universe. In the word’s of John Polkinghorne, a philosopher of science, the quantum vacuum, “…is not ‘nothing’; it is a structured and highly active entity.”[9] So, in context of some of the physicists’ definition, the universe could not have come from absolutely nothing, as the quantum vacuum is something. It is a sea of fluctuating energy, which is still part of the cosmos and it did not pre-exist the universe. This point leads us nicely to the next possible explanation. Self caused or self created Philosophically, the universe couldn’t have created itself because that would imply a paradox. It would mean that something can exist and not exist at the same time. The logical ends of this explanation are tantamount to saying that your mother gave birth to herself! Recently, the world renowned physicist, Stephen Hawking in his new book The Grand Design argues that the universe did self create due to the law of gravity, “Because there is a law like gravity, the universe can and will create itself from nothing…”[10] But his view on nothing, as previously mentioned, is not really nothingness but is space filled with the quantum vacuum, which is part of the universe. In essence Hawking is telling us that the universe can create itself, but it has to already exist for it to do that! Concerning the law of gravity, well that is just a mathematical equation that describes nature. This law is part of the universe, which can also be described as a force of attraction between material objects. Therefore, how can this force exist before matter, in other words the universe? To assert that the universe created itself would be absurd and self refuting, because in order for something to create itself it would need to exist before it existed! Created or brought into being by something else that began to exist This is not an adequate explanation for the origins of the universe. The universe could not have owed its existence to another state of temporal physical existence. To maintain such an explanation would be equivalent of expanding the boundaries of the universe, as all things which have a temporal beginning exist within the universe. Also, if temporal physical existence owes itself to another temporal physical existence ad infinitum, it doesn’t explain anything. Rather it highlights the absurdity of an infinite regress, and that there has to be a beginning to the temporal physical states, which logically must be a non-physical state. Take the following example into consideration. If the universe, U1, followed another temporal cause U2, and U2 followed another temporal cause U3, and this went on ad infinitum we wouldn’t have the universe U1 in the first place. Think about it this way, when does U1 come into being? Only after U2 has come into being. When does U2 come into being? Only after U3 has come into being. This same problem will continue even if we go to infinity. If U1 depended on its coming into being on a chain of infinite temporal causes, U1 would never exist. As the Islamic Philosopher and Scholar Dr. Jaafar Idris writes, “There would be no series of actual causes, but only a series of non-existents, as Ibn Taymiyyah explained. The fact, however, is that there are existents around us; therefore, their ultimate cause must be something other than temporal causes.”[11] Created or brought into being by a non-created or un-caused entity Since something cannot come from nothing, and self creation is absurd, including the unreasonableness of the aforementioned explanation, then the universe being created or brought into existence by an uncaused entity is the best explanation. This concept is intuitive but also agrees with reality: whatever begins to exist has a cause or a creator. answeringislamicskeptics/does-the-universe-need-a-creator.html
Posted on: Fri, 03 Oct 2014 18:36:22 +0000