RE@40: Midlife Crisis or Graceful Maturity?

The RE@40 seminar offered a diagnosis of the state of RE as it enters its 40s. At 40, RE has grown up a bit and should have a clear sense of who it is as it moves deeper into its most productive years. Of course, many 40-somethings also begin to experience a midlife crisis and suddenly change direction, perhaps not attending well to their current responsibilities. Where does RE sit at this juncture?