ATD: "against the day"

[MalignD at aol.com]

In a message dated 7/21/06 1:12:14 PM Eastern Daylight Time, dmeury at yahoo.com 
writes:

<< <<The acronym ATD is possibly the least pleasing of
 all the Pynchon acronyms.>>
 
 Yeah, and how about TP, I mean, sheesh! what kind of
 initials are those?
 
 And what's the acronym for _V._?  And what's up with
 that period? >>

And how about The Sun Also Rises?