if it turns out that porter is right and intertextuality makes writing unoriginal then no piece of writing can truly be autobiographical. although murray makes good points to the fact that no matter what you are writing about and no matter the final content of your writing, you put your personal style and voice into the writing which makes it autobiographical. but if you are pulling quotes from other writing or taking and using ideas from other writing it changes the writing and gets rid of the autobiographical voice. taking pieces or ideas from other writers throws originality out the window.

when you take information from other pieces your voice can still be heard in between those added pieces but i think that the effect that a personal voice adds is lessened. because individuality is compromised, the pieces strength is also compromised.