This is a long article (23k words!) but it's well-written and information dense. I need to finish reading it and study it more closely, but it is already clear

This is a long article (23k words!) but it's well-written and information dense. I need to finish reading it and study it more closely, but it is already clear to me that the author has spent a huge amount of effort making sure that the subject is covered comprehensively and correctly. Really great work.