It is probable that God exists

Thank you for accepting my challenge, I hope we can get the most of it. First, let me state the Kalam Cosmological Argument: Everything that has a beginning of its existence has a cause of its existence; The universe has a beginning of its existence; Therefore: The universe has a cause of its existence. The first postulate of the argument states that all existence results from a cause. American philosopher William Lane Craig defines this postulate as "intuitively obvious, based on the metaphysical intuition that something cannot come into being from nothing." Furthermore, modern science has not proved nor observed an event where something comes from nothing. We know for a fact things exist, so following this progression in regress we eventually reach a "first cause" that has no cause itself. This First Cause corresponds to the mentioned concept of "God" because of three reasons: It is omnipotent because the entity has the power to create itself and the universe, meaning the entity can simultaneously exist at two different times and ignore physical and metaphysical laws. It is intelligent because the universe it created shows a purposeful and conscious design. It is omniscient because, being the creator and designer of the universe, it is the source of all truths, logic and knowledge. Having said this, I accept the possibility that the First Cause responsible for the existence of the universe may not be a supreme being, but a natural conscience-less physical cause. Nonetheless I have to say this is highly improbable, and I will proceed to demonstrate. If the First Cause is a naturally occurring event inside the boundaries of the physical world, the First Cause must be governed by such laws. Having something create itself from nothing implies breaking physical principles like Thermodynamics or Matter Conservation. So, the existence of the universe is best explained by a supreme being that is, by nature, exempt of all physical and logical laws, rather than by a natural phenomena that "somehow" occurs previously and independently of such laws. Theorizing in favor of a natural First Cause that does not abide to the physical laws known to man implies a remote possibility. It is also pointless to propose a First Cause caused by gravity and other forces (as Hawking proposed), because we don't take into consideration the origin of such forces. To reinforce my argument that the universe was created by a sentinel conscience I will appeal to the following claim: "The universe exhibits purposeful, intelligent design." Cells have complex functions that respond to particular needs. The Krebs and Calvin cycles are examples of these complex and purposeful functions. While it is true that evolution accounts for the design of modern living organisms, we need to analyze the nature of evolution. Some intelligence is required to solve any problem; when an organism encounters an unsuitable environment and changes to overcome it, the problem-solution methodology is being applied, and since the organism's mind takes no part in this process, it is safe to assume an intelligent creator has designed evolution to occur naturally. Again, it is possible for an aleatory phenomenum to result in an orderly and purposeful fashion but, again, it is unlikely and the odds favor sentinel design over randomness.