Fuckin' TED talks.  Almost universally fascinating.  I have no idea how this talk bore any relationship to this conversation, but it was new to me and very interesting.  I'm usually skeptical of such amazing results.  This guy's thinking is 'orthagonal' but actually should not be.  Ecosystems are so amazingly complex and tens or hundreds of millions of years of evolution are such a good tuning fork that it would make sense to look to pre-history to find solutions which work.