Although it is true that no human being, atheist or believer, can disprove the existence of god with empirical evidence, this is not a requirement for the Atheist position. I'm not in any way, going to make the claim that I will be the first homosapien to disprove the existence of god, but my doubt in god's existence relies in large part due to some logical contradictions that I think exist.
First of all, what do I mean by god? There are a myriad of different concepts of what god is, between religions and even within religious sects themselves. For instance, ask two believing Christians what they think is the nature of god, and you will get two totally different (and even contradictory) answers. With all these apparent differences in beliefs, I will try to focus on the general concept of the monotheistic god believed by Jews, Christians and Muslims.
To the three monotheistic traditions, god is an all powerful, omniscient, omnipotent, morally perfect, timeless being, who is essentially kind and compassionate, and who is the "first cause" in the creation of, at the very least, our universe. Now these
properties of god all have slight variations in the beliefs among Jews, Christians and Muslims (as well all the other religions) and we all know this has led to centuries of bickering and bloodshed (praise be to god!). I am not here to argue these differences, but rather I am here to make a case for how a simplified, conflated view of these beliefs in god comes across some logical contradictions, just as the religions themselves do.
Part 1: The Logical Implausibility of a Timeless God
We are told that god is timeless, but what does this mean? Believers say that god exists outside of time, but how is this really possible? If god created the universe, then there was a moment when god existed alone, before he created the universe, and then there was a moment when god exists with the universe, after he created it. But you cannot have concepts of "before" and "after" without time. In order for god to do anything, there must be a time before, and a time after he does it. Therefore, it is logically impossible for god to exist outside of time.
Now if god exists inside of time, then that brings up other problems. For example, believers say that everything that begins to exist must have a first cause, except god (how convenient). But if god does not have a first cause, and exists in time, then he must have an infinite regression of time in his past. To have an infinite regression of time in one’s past, also means that there are an infinite number of events in their past as well. To quote an argument made by the Christian theist William Lane Craig in his
debate on the existence of god with Christopher Hitchens, Craig states that "mathematicians recognize that the existence of an actually infinite number of things, leads to self contradictions. For example, what is infinity, minus infinity? Well mathematically, you get self contradictory answers." Craig is on the right page on infinity’s impractical implications and is using this logical contradiction in defense of god, however he is failing to realize that the very same argument he is trying to make for god, is better applied against god. In other words, if god exists in time and therefore has an infinite past, then it would take an infinite amount of time for god to get to the present, and thus he would never have enough time get here.