Peter Woit also has some material on this :) http://www.math.columbia.edu/~woit/wordpress/?s=boltzmann+brain http://www.math.columbia.edu/~woit/wordpress/?s=bo

Peter Woit also has some material on this :) http://www.math.columbia.edu/~woit/wordpress/?s=boltzmann+brain http://www.math.columbia.edu/~woit/wordpress/?s=boltzmann+br... as does Luboš Motl: Boltzmann brains: popular misconceptions http://motls.blogspot.de/2008/08/boltzmann-brains-trivial-mistakes.html http://motls.blogspot.de/2008/08/boltzmann-brains-trivial-mi...