What I love and appreciate from Metivier, he will cite his sources. He makes it super easy to go back to his sources and mine those materials myself. He gives credit to other memory experts and is transparent throughout his books and course about where he is in his own process of growing and learning. In summary, we don't need originality, we need what works and in the scholarly world- syncretizing multiple sources and distilling them into a process IS original even if every building block is coming from another source. We're all standing on the shoulders of the giants before us.