Can you assist me with a set of frequently asked questions (FAQs) with appropriate, refined, and well-developed answers regarding heutagogical learning to be used as talking points in the workshop. Be sure to consider your audience and its interests. I need to prepare FAQs to address the similarities and differences between heutagogy and widely-known concepts of self-directed learning. I also need assistance with addressing the relationship between the concept of heutagogy and constructivist learning theories. I need to address the acceptance of the term heutagogy among scholars and its secondary use in educational and training literature. Is this a widely-known and accepted term and a well-differentiated concept or theory?