1. Pi isn’t three. If the universe were intelligently designed, not only would certain bible verses imply that pi is three, but it actually WOULD be three, rather than a student-baffling irrational number.
2. Atheists exist. As one of those with less “god gene” than others, I often marvel at the fact that if there were an intelligent designer, he did a darn poor job of designing me (and many others) as good little believers. Want people to acknowledge your divine presence? Design them in a way that encourages such! If I had a marquee on my index finger that constantly explained to me the wonders of the divine world, I’d be far more convinced.
3. London, England is realllllly far away from Columbus, Ohio. Pfff. Why would this be? A god with sense would realize that those from the Midwest clearly need regular excursions to London, and thus would have placed them in closer proximately. Same with Antarctica and the Caribbean. Clearly, these are compliments to one another and should be within walking distance so when one gets sick of one climate, one can visit the other.
4. Women don’t come with a mute button. (blinks) Wait. Not only did I definitely NOT come up with that last one, but the creator of that last sentence will certainly be sleeping on the couch for at least a month. Let me replace it with: if there were an intelligent designer, men with a predilection towards making comments such as the one above would have mechanical devices in their heads that would allow their significant others to shock them when they said such. (nods) Much better.
5. Men have no vibrating genitals. None. How ridiculous and poorly designed is that? Clearly, if we were designed, the designer either wasn’t omnipotent or wasn’t benevolent. Either way--- a ridiculous oversight!
Okay, so, title not withstanding, these might not be the leading reasons why the universe couldn’t possibly be intelligently designed. Want to explore some other reasons? Check out Wikipedia’s Argument from poor design. It’s very remotely possible that their reasons are a bit more scientific than mine. Remotely.