Thinking deeply and thinking broadly about the human experience sometimes reminds me of the roles played by the forces of lift and thrust in aeronautics. There is one complete set of conditions to be dealt with before "flight" can be sustained and controlled. You've used the term "prune" for what might be called "trim" in sailing or flying. I like it, especially if I change my underlying model of culture from the arboreal to the rhizome. Without the continuity of interdependence the cultural enterprise fails. We can't be comfortable with the idea that "I'm o.k." while others are "failing." We have a great deal of work to do on our socio-economic and political thinking before we'll reach anything that can remain vigorous for very long. DNA has preserved and expanded life across the ages mostly because it adapts. Maybe Bitcoins, or other technological advances will allow us to come up with a 'truer," more sustainable socio-econimic model than "the market." I'm only optimistic because almost everyone detects some kind crucial flaw in the current metaphor.