The Observer stands with the crowd behind the crime scene tape after Peter discovers that the shapeshifter's memory disk is broken.
The glyphs for this episode spell out: DECAY
The music heard during the numbers transmission in the beginning of the episode is Midsommarvaka (Swedish Rhapsody) by Swedish composer Hugo Alfven.
The Calendar of the First People has 22 months totalling 360 days. A 6 day week is indicated.
The first number broadcast is in Dutch. During World War II allied number stations broadcast number codes to members of the Dutch underground.