The document discusses the relationship between enterprise architecture (EA) and systems thinking (ST). It explores whether they are the same thing or different, and what they can learn from each other. The document raises questions about their common elements and differences, including different notions of "system", purposes, and practices. It also discusses opportunities for collaboration between EA and ST practitioners to address complex problems. The overall tone is one of open inquiry rather than assertions, seeking to have a thoughtful discussion around the topics.