What are Mildred's indifferences to life and Montag in Fahrenheit 451?

When the novel opens, neither Mildred nor Montag are living life fully. Mildred spends most of her time watching mindless television on giant view screens. She doesn't experience nature or real relationships with other people. Her life has become so empty that she tries to commit suicide.
Likewise, Montag's life as a fire fighter is largely empty, as he realizes when he meets Clarisse on the way home from work one evening. Like Mildred, he has become numb and unaware. He doesn't look at the sky or the moon. Unlike Clarisse and her family, Montag seldom has a real, engaged conversation with another human being. He doesn't think about ideas.
Both Mildred and Montag have become victims of a highly technological society that bans books and uses technology to keep people from thinking deeply and relating to one another.