playing their role in the planet 's cycle of birth and death , happy with their bourgeois lotwell , some of them are and some of them aren'tbut both kinds lost forever to the single person 's world of unfettered existence on life 's ocean waves , a memory swapped for a roof over their heads , the use of a car , the need to comply with their biological requisites , and the desire not to be alone and without offspring when dr. death comes tapping on their door , as they know assuredly he one day will .