The Santa Fe Institute (of which Geoffrey is a member) is explicitly dedicated to complex systems research. They tend to take some theoretical stances certain f

The Santa Fe Institute (of which Geoffrey is a member) is explicitly dedicated to complex systems research. They tend to take some theoretical stances certain fields might consider controversial, but there's a lot of smart people there nonetheless. I'd also recommend Marten Scheffer's work on the stability of complex systems as particularly relevant to this thread.