Chalmers: "pretty well in the dark" on a theory of consciousness

In this 2007 video, philosopher of mind David Chalmers talks about the progress science has made toward decoding consciousness, as well as the difference between the "hard" (PDF) and "soft" problem of human experience. One of the foundational mysteries in an age of scientific and technical wonders, the first person, or subjective, experience of the world continues largely unexplained. Will science will ever relate sentience to the physical facts?