Well, when we listen to Darwinian accounts of how humans got to stand up and be intelligent, they tend to focus on the proximal causes, like the need to adapt to this or that particular situation, plus sexual selection and so on. But it doesn’t tend to address the mind boggling number of junctures that even allow us to arrive at these crossroads in the first place, involving the precise laws of the universe, the way natural selection itself works, the very idea of selective pressures. Reality seems to be amazingly designed to result in a brain that can perceive the world around it.
How do we account for this? Some have proposed the idea that there is an infinite number of universes, and we inhabit the one where we can perceive the universe simply because we can’t exist in any of the other universes where such perception is not possible. This is an interesting idea, and not easy to rule out, but isn’t it unnecessarily complicated. Isn’t the simplest explanation for the universe appearing to be geared toward consciousness the idea that it was constructed in that way on purpose? The multiverse idea at least acknowledges that our consciousness is remarkable and requires some sort of remarkable explanation.
Simon Conway Morris is a scientist who writes on the inevitability of human type consciousness in our universe.