I have upvoted your comment, regardless of the technical accuracy of your wording. In the edition of the book that I first read, Pirsig included this informatio

I have upvoted your comment, regardless of the technical accuracy of your wording. In the edition of the book that I first read, Pirsig included this information in an afterword and although it wasn't a core part of the original narrative it certainly was expressed as an update or continuation. And having travelled the journey with father, son and ghost until that point, it was a heartbreaking epilogue.