Common sense is what caused my atheism. The bible never did make any sense to me with its twisted stories. Things just didn't add up and when I questioned those things, I was told to not question god, which caused concern. The older I became, the more I realized that the whole god thing was bullshit. There's much more to it than that but I'm on my phone and can't type like I'd like to. So you get the short answer.
Disclaimer: I am only responsible for what I say, not what you choose to understand.
