A few other details I really liked...
I'll use spoiler tags this time.
Spoiler:The marble stone in Orlandi's mailbox. I'd forgotten all about it, the tablet was just quietly sitting in my inventory, but it was so satisfying to find out who wrote that! And the many different interpretations throughout the dream of the phrase "where it all began"... with the best one at the end: the picture of Mirta at the spot with that mysterious purple button.