Just came across a fascinating paper by Lawrence Krauss and Glenn Starkman entitled "Universal Limits on Computation."
Basically, it shows that there is a limit to computation in an expanding universe and that consciousness has limits as well.
http://arxiv.org/pdf/astro-ph/0404510
Basically, it shows that there is a limit to computation in an expanding universe and that consciousness has limits as well.
http://arxiv.org/pdf/astro-ph/0404510