I finished Neal Stephenson's The System of the World, the third and final volume in the Baroque Cycle, a couple of days ago. I'll have more to say about that soon. However, I can say that it reveals almost about Enoch Root. There are a couple of hints at both the angel and wizard hypotheses that have been promulgated here in the past, but nothing definitive. In fact, I wouldn't put it past Stephenson to have snuck the clues in just to tease fans. However, Enoch does not actually appear in the course of the book. There some letters back and forth, but he never actually shows up. Waiting for Enoch. One hypothesis about another unexplained occurrence in Cryptonomicon was confirmed in this volume. Maybe in the next book, set sometime in the future after the events of Cryptonomicon, Enoch's secret will finally be revealed.
There is one new question that I'll set up a web page for soon. I thought about this when I read QuickSilver, but wrote it off as bad 17th century science and alchemical superstition. However, it becomes more apparent in this volume that, at least within the context of the story if not reality, something very weird is going on. Without giving too much away, I'll simply ask for those who have read the books, what's up with the gold? If you'd care to comment on this, drop me some e-mail, and I'll summarize the best ideas on a separate page to avoid spoiling the fun for those who haven't read the book yet. Please note whether or not it's OK for me to post your e-mail publicly.