When humanity began the world was a scary place. We didn't know what lurked beyond the yonder hills, what powerful forces created the night and day, or why people died randomly after getting a insect bite.
Hence, we created myths and fables to explain what we could not understand. Later, these myths and ideas evolved into religions such as ancient greek mythology and eventually others like Judism and Christianity. At least that's how I see it to be.
Then, low and behold we began to use science to understand the world. We classified the animals, discovered new worlds such as america, and uncovered the power of microscopic diseases and so forth. And it was good. Can I get an Amen?
Now, it seems to me that religion is,... obselete. Where religion comforts, science explains and controls. I believe Religion was the training wheels on the bike that is humanity, and science needs to let them go in favor of greater speed.
Religion is getting in the way of a better more efficient humanity from where I sit atop my throne of human bones.
Just kidding about that throne thing.
We'd have a mass increase of religious extremists bombing stuff to get their religion back (despite the thou shalt not kill bit 
) 
