Debate: Was the world really created by god or the big bang theory?
Side: Big Bang

There are some pretty big logical flaws here."Everything that begins to exist must have a cause for its existence."This is an assumption. We know that there was a singularity, and a large explosion occurred which caused the rapid expansion of the universe out of this singularity. The singularity, however, could have existed forever. It could even have been a previous universe going through it's big bang/big crunch. Your argument unfortunately breaks down at this point, as your premises are not shown to be true."it must be immaterial because it existed in the absence of all matter"Assumption. We don't know what existed before the universe, or indeed if there even was a before. Remember that time is possibly only a property of this universe, so anything outside of the bounds of this universe is purely assumption."it must be timeless because it existed in the absence of time."Assumption. As I stated above, we can't make any assumptions of time outside of the bounds of the universe."it must be personal because it intended to create the universe."Ouch! Not only is this a huge assumption, but this one isn't even based on any current knowledge. Quite sneaky as you attempted to throw this line in between three other possibly valid (though, remember, they are all just assumptions) statements. Please show me how you can deduce that there was intention to create the universe. Just because it is here doesn't mean that there was any intention for it to be here. Can you back this statement up?"it must be enormously powerful because it had the power to create the entire universe"Assumption, though this one is highly likely. Within the bounds of the universe, I'd have to agree with you. The first law of thermodynamics also agrees with you. But remember, we're talking possibly about pre-universe here. Or, possibly, about a universe that has always existed. Maybe the power that is used to create the new universe is simply the power emitted by the big crunch of a previous universe?"Some have suggested that the God hypothesis is false because God must have been caused, but this is simply not true."I can assure you that it is. What you've done here is assumed that the universe could never have always existed and that god could have. These are simply assumptions. If you're willing to accept that god has always existed, why are you not willing to accept that the universe has always existed? The fact that the state of our current universe came from an explosion within a singularity is not important. We have no current understanding, evidence, etc, of anything that occurred beforehand; therefore the universe always existing is just as likely as god always existing. If you aren't willing to accept an ever-existing universe, then I am afraid that I am unable to accept an ever-existing god."Those who deny that God created the universe are left to explain how something came from absolutely nothing."If you can show me that the universe absolutely hasn't always existed, perhaps; but you can't. Regardless, the jump from "something had to exist previously" to "well, it had to be an intelligent personal god then" is too far a jump. It's all just assumptions, which you're trying to back up with logic. The problem is that your logic just doesn't hold up under scrutiny. It's amazing what people will accept with god ("oh, god, yeah, he's always existed"), but will refuse to accept with the universe.