Agnostics tend to think the real secret behind life's meaning isn't reachable to human understanding, while critics of these beliefs point out how mankind evolved in these 2 millenia and how it (probably) has almost infinite time ahead of it, to advance further - it's mindboggling what human race could achieve in a million years (providing we still exist by then), we could evolve into something unthinkable to a human living today. Just like a prehistoric man couldn't imagine what today's man would look like, or how it would evolve.
Me? I dunno. I'm split both ways. I partially agree with both sides, but in the end... I just don't know.
Which makes me an agnostic, by definition.