re: Westworld S01 E09: "The Well-Tempered Clavier"

Arnold's reasoning for becoming AI was to delete his difficult memories regarding his family... evidenced by the comment Ford makes when deleting Maeve's memory "a trick from an old friend"

Also, on rewatching ep. 8, Ford talks to Bernard in the opening scene almost from the perspective as humans being something other than himself... was interesting word juggling he was doing