I will say a couple things without delving into anything too personal.
Regarding Panj's comment about the appendix, more recently there have been studies to show a use. A very brief description:
It has recently been found that the appendix has a function in embryology as it develops endocrine cells in the 11th week which secrete amines and hormones used in development
So you are willing to wait on science to figure out how the universe was created (admittedly a much more difficult thing to figure out) but not willing to see if science can explain what we currently view as "useless" organs? Regardless, if we were created by God, I think we have most likely evolved since then.
seven asked earlier if there is a God, why wouldn't He just create humans to love Him no matter what. To give you my explanation, one cannot love without the option to not love. If we were forced to love, that'd be a lot more like rape. It would be the equivalent of making my computer say, "I love you, Jakesie" every once in a while. I doubt anyone would feel rewarded by that.
In regards to the first bolded point, if the appendix serves one purpose during the embryonic process, but only has the potential to cause problems later, I'd consider that bad design. A good design, if it was no longer useful after it's initial function, would be for it to simply shrink or disappear after it was done, or use a different method altogether. And if God is relying on evolution to do the dirty work, and we weren't explicitly designed, the widely accepted belief that most religious people hold of God designing humans in his own image is tossed out the window. If we're a hot mess, what does that make God?
In this situation, one of two things is true. Either God is an incompetent designer, or he didn't design us in his own image. If he's incompetent, then why should I do anything he says? He's obviously stupid. If he didn't design us in his own image, most Abrahamic religions are in a bind, because that's a core belief in the Tanakh and the Old Testament. I'm still a little shaky on how that all plays into the Islamic version, but whatever. Two outta three ain't bad.
In regards to the computer example, love is a biological and psychological "soup" based primarily on sexual attraction and attachment theory. There have been tons of studies done on the biological basis for love and why we end up getting attached to one another. A lot of it is evolutionary.
The bottom line, to me, is that the crux of the issue is that we've evolved to the point where our species has developed a super ego, and our narcissism for finding a deeper meaning and our special place in this world must be satisfied. To do that, we need to be God's "special children", and we need to be created in his image. We cannot live knowing that we are simply a mathematical anomaly and all of what we perceive to be beautiful and wonderful in the world is really a complex and advanced biological and psychological response to our base evolutionary instincts. To know how unlikely it was that "you" were the winner in reproductive race of millions in your mother's womb. To know that you will die and there will be nothing left but the DNA that you passed onto your children. It's too depressing for most people and won't satisfy our super ego, so we yearn to believe that there is more to this accidental existence.
Hence, God.
The best example of this thought came from the Hitchhiker's Guide to the Galaxy in the form of the "Total Perspective Vortex":
"The Total Perspective Vortex derives its picture of the whole Universe on the principle of extrapolated matter analyses.
To explain — since every piece of matter in the Universe is in some way affected by every other piece of matter in the Universe, it is in theory possible to extrapolate the whole of creation — every sun, every planet, their orbits, their composition and their economic and social history from, say, one small piece of fairy cake.
The man who invented the Total Perspective Vortex did so basically in order to annoy his wife.
Trin Tragula — for that was his name — was a dreamer, a thinker, a speculative philosopher or, as his wife would have it, an idiot.
And she would nag him incessantly about the utterly inordinate amount of time he spent staring out into space, or mulling over the mechanics of safety pins, or doing spectrographic analyses of pieces of fairy cake.
“Have some sense of proportion!” she would say, sometimes as often as thirty-eight times in a single day.
And so he built the Total Perspective Vortex — just to show her.
And into one end he plugged the whole of reality as extrapolated from a piece of fairy cake, and into the other end he plugged his wife: so that when he turned it on she saw in one instant the whole infinity of creation and herself in relation to it.
To Trin Tragula’s horror, the shock completely annihilated her brain; but to his satisfaction he realized that he had proved conclusively that if life is going to exist in a Universe of this size, then the one thing it cannot afford to have is a sense of proportion."
