From my perspective kin recognition, spatial selection, punishment (and other dynamics you discuss in your post on the Evolution of Cooperation) are actually all manifestations of the evolutionary benefit of cooperation under the right circumstances. In other words, these all fall under the heading of group selection.
Hah, good find! It seems that group selection was a case of "baby thrown out with bathwater"--some of the arguments used to justify it were weak, but that doesn't mean it's a bad concept.
Of course, it's hard to differentiate between the effects of group selection, kin recognition, or spatial selection. They end up looking like mostly the same thing. For many organisms, a combination of these and other mechanisms were likely relevant in structuring their societies.
I believe the scientific method as currently practiced is incomplete. ”Science 2.0″ is emerging, and the lessons from complex systems theory are a big part of what’s missing. This has more than theoretical implications; the biggest challenges we face are due to a general ignorance of — and a willful dismissal of — the realities of an increasingly complex, interdependent world.
To learn what else I’m interested in visit RafeFurst.com.