Isolation can be frightening because it can distort one's sense of reality and potentially lead to devastation. How does this theme apply to the...

Beyond Harrison's personal isolation, the ordinary members of society were isolated (via governmental techniques of physical, mental, and aesthetic equalizers) from any sense of humanity.  By creating a nation in which all people were equal--and, thus, "ordinary"--the government eradicated any sense of individualism.  The government did this because they believed that differences between people would cause society to become disjointed and unmanageable.  Out of this fear, the government attempted to rid itself of such isolation (as mentioned above, through equalizing all citizens).  This method backfired, however, as it created a civilization that was completely stagnant.  Without individualism, the society lacked the ability to progress and evolve; it became a mere illusion of utopia (hence, the distorted sense of reality) at a stand still.  Devastation inevitably arrived with the revolt led by Harrison and his consequent murder by Diana Moon Glampers.