Unless you change the definition of consciousness. A systemic collection of cells firing. A system that can distinguish itself from the environment.The brain assumes it's conscious. Consciousness doesn't inherently add recognition of itself. It's inputs are derived from cells firing. Temporal correlations of action potentials for individual percepts creating coherence. We keep saying we're conscious, but there's no direct feeback from qualia. Those cells making you think you're conscious are based on activation of other cells assumed as derivatives of what makes it. It's the power of belief. There's no way we can know there is a qualia. There's no direct feeback to the system that makes it. There's no direct feedback anything. Even if the universe makes it real, our brains can never know about it.

Edit: I had some good inputs. I came to the conclusion that there is no adaptive significance of experience on neuronal communications. Experience hence is not adaptive, and thus not adopted. The experience that you "have" is an illusion at best. It doesn't exist as far we know it.