Scientific proof that god doesn't exist:

An essentially conjoined esophagus and trachea. How in the world is it INTELLIGENT or LOGICAL to combine to pipes that are vital to survival essentially into one input? The very thing we need to do to survive (eat) can cause us not to be able to do the essentially only other thing we need to do to survive (breathe).

Seems like a major design flaw if we were intelligently created. Which then infer that our creator maybe isn't so perfect. Nature and evolution on the other hand would take the simplest path it can to form our systems; which would result in reusing what it can.