Tas vēl nenozīmē, ka grāmatas iecere vai manuskripts nevarētu būt bijis zināms vēl pirms grāmatas izdošanas, jo Pārfita grāmatas sākumā ir teikts:

The Tanner Lectures on Human Values were established by the American
scholar, industrialist, and philanthropist Obert Clark Tanner; they
are presented annually at nine universities in the United States and
England. The University of California, Berkeley became a permanent
host of annual Tanner Lectures in the academic year 2000–2001. This
two-volume work is the sixth in a series of books based on the Berkeley
Tanner Lectures. The volumes include a substantially revised and
expanded version of the lectures that Derek Parfit presented at Berkeley
in November of 2002, together with the responses of the three invited
commentators on that occasion, T. M. Scanlon, Susan Wolf, and Allen
Wood; there is also a fourth set of comments, by Barbara Herman,
as well as replies to the comments and additional material by Derek
Parfit. The volumes are edited by Samuel Scheffler, who also contributes
an introduction. The Berkeley Tanner Lecture Series was established
in the belief that these distinguished lectures, together with the lively
debates stimulated by their presentation in Berkeley, deserve to be made
available to a wider audience. Additional volumes are in preparation.

No tā var secināt, ka 2009.gadā, kad iznāca minētā Pārfita grāmata, noteikta auditorija jau bija labi pazīstama ar Pārfita argumentiem un grāmatas ieceri.