Hi Chris, just seeing this response.
I don't have a great
answer to your question, which is one of the reason I've organized the course. I keep hearing from folks about the success of the syntropic farming systems in Brazil and find it easier to bring the instructors to me than going to Brazil at the moment. From my understanding syntropic farming is a form of agroforestry that is quite specific in its recommendations/practices to achieve financial viability.
Permaculture design for me is quite broad in its recommendations, usually at the pattern/principle layer, and lacks detailed recommendations based on specific outcomes. Other resilient design systems?? Hard to tell at what point we (broadly speaking) are talking about the same thing with just a different name.
But if you ask me after June 2019 and the course, I will likely have a much better and more confident answer.