How humans are "slaves", and how that leads to the existence of God.

[Redbeard The Pink]

Redbeard The Pink

Zero was just one example.
An example I used a lot here in the past was the base case of recursive functions., which is the special conditions that forces you to exist the loop of the function.

And again, that is a special case that is special because of supportive, mathematical reasons and not because of a person's or book's arbitrary say-so.

The Quran provides lots of good reasons for why God is the special case.

Unless we have a good reason to believe the Quran, it does not provide a good reason to treat Gaud as a special case; alas, there is no good reason to believe the Quran. Furthermore, the Quran may actually be the claim in this case, and a claim cannot be used as evidence of itself.

Logically, to me, it makes sense.  one major reason is that all things must come from a source,

Then Gaud must come from a source; otherwise you're special pleading.

and I just simply don't believe that the big bang was caused by a random event;

I know you don't. That's called "Argument from Personal Incredulity," and it's another fallacy.

I think it was engineered, by a creator, which our minds can't get how he is there, because all we know and see is creations. Asking how he came to be is is just as meangless because the rules of creation don't apply to him.

For what reasons do the rules of creation not apply to him? "Because I read it in the Quran" is not a good answer, and "Because a voice in my head told me" is also not a good answer. Unless there's a good reason, you're still guilty of Special Pleading.