Nothing is more limitless than the potential of a person's dreams.  Nothing is more uncertain either.  Since man first fell asleep he has been trying to tame this wild frontier.  We have perfected techniques to control your own dreams in the form of lucid dreaming, but how can we enter the dreams of others?  That is the question that the Brain Trust attempts to answer this week as they as they analyze the science and technology behind the P.A.S.I.V. device from the movie Inception.