 <unk> speaking , we wanted the stories of these three relations of Peggy , Roger , and Don to be their own story . We wanted to give you a little bit more each time you saw each of the three story lines so that when you got to the third one , everything totally made sense . I 've talked to people and they 've had to watch it a few times to fully digest . Also , the score in the episode is pretty unique and more tonal and atmospheric than what we normally do . It 's a guide , too , that helps you feel when one story is ending and another is coming in and knowing that the shift is happening . I think the score and the sound design definitely helped guide the narrative . 
