Frankly, I've never understood what "the meaning of life" is supposed to mean. It's an odd phrase. I take it that the question is supposed to be what the purpose or point of life is, but that's an odd way to ask the question, and I'm not sure I really understand it then, either. Why think that life, as such, that of plants or animals, bacteria or gnus, has any uniform point or purpose? What difference would it make if it did or didn't?

I think people who have asked what "the meaning of life" is have wanted some understanding of what they were supposed to be doing with their lives: If we knew what the meaning of life was, the thought is, then we'd have some idea what the goal of life was, and that would give us some sense of what a well-lived life would consist in. Then we'd have some idea what we ought to be doing here. The cover of Killing Joke's second album shows a young lad looking up at the sky and screaming, "What's this for!?" That's the feeling behind the question.

But note that the real question is just this one: What ought one to do with one's life? Or simpler still: How ought one to live? (The Greeks were a big fan of that question.) It's just not obvious that there has to be some goal everyone is supposed to be trying to reach for there to be some sensible answer to the question how one ought to live. But ultimately, of course, the question is a personal one: How ought I to live? What do I wish to do with my life? These are profound questions with which we all have to struggle, and I pity the person who does not struggle with them. Moreover, I very much doubt that the theory of evolution has much to tell us about the answer, and I doubt that intelligent design does, either. And I'm not sure how much philosophy as practiced today, or for that matter ever, has to teach us here, either. Frankly, when I find myself puzzled or troubled about what I'm doing with my life, I'm not very likely to turn to Kant or even to Plato, let alone Frege or Quine! I'm much more likely to turn to fiction, to poetry, or to music. Or to the Bible, but not because I think it will answer my questions for me.

If one understands the question what the meaning of life is in this way, then I think the answer at which you're arrived is pretty unattractive. Of course, that's not how you were understanding the question. But then your answer is beside the point, because you weren't answering the question that was actually bothering people.