Why are you so certain of this? I grew up dominated by Christianity. It wasn't until 14 that I saw a UFO magazine insinuate that humans came from Mars. True or not didn't matter - what I remember from reading that was that my faith was shaken to the core. That day, I learned to never base your worldview on something so tenuous that a new discovery could topple it. That experience sent me on a journey to solidify my understanding of the world, and in the process, has made me less of a 'hardcore' Christian.