Lost City posits several possible reasons why a tree outside the Plymouth apartment building in Borough Park may be festooned with colorful used baby pacifiers: "The residents … are mainly child-proud parents, and every time a new kid is born a pacifier goes on the tree to signify the birth." "The residents … belong to an as-yet-undiscovered cult." "Aliens." Plymouth residents, can you edify us? Borough Park is heavily Orthodox Jewish. Is this some insular thing we goyim and more secular Jews don't know about? [Lost City]