Anyway, Astrid's discovered more of what the cult believes: "Each generation of gods is overthrown by its children, who become new gods with new tools. Science delivers these tools, and mankind gains dominion over all he surveys." Tsk! Typical sexist religion.

Anyway, most of it's about encoding foreign genomes with retroviral DNA, but Walter, coming over to have a look, notes that the file number is "816tpt618" -- a palindromic code. And wouldn't you know it, years ago when he and Belly were "tripping," they created a way of organizing lab files using only palindromes. Olivia asks if he's saying this information comes from Massive Dynamic. You know, at some point, Fringe is going to realize that it's much more efficient to start the investigation at Massive Dynamic.

However, over at Massive Dynamic -- one of those trips that probably could have been replaced with a phone call -- Nina can't help them, because they haven't used that file system for years -- they converted to a more "user-friendly" system after Belly died. Olivia suggests it's from a terminated experiment, and Nina says she'll have to run a search since they have many projects dealing with the genetic engineering of hybrids.

As she gets to typing, she glances at Olivia and notes that "Phillip" said she'd been pulled off field duty. Olivia shrugs, all, "I know, but here I am," which is about as nice a way to say, "Mind your own damn business," as I can think of and Nina chalks it up to the possibility that every version of Olivia is stubborn.

But success! The file number corresponds to an old project, but the contents have been erased. Peter asks if it could have been hacked into from the outside. Nina doesn't see how because the system doesn't have eight redundant firewalls. Yeah, it sounds like it was as safe as your Cortexiphan supply that no one could have accessed, right?

Olivia asks who was overseeing the project. Turns out it was Lane Pryce. I mean, David Robert Jones.

Over at the Harvard lab, Lincoln is plowing through the sandwiches Walter made. Well, he's actually just picking off the bacon and eating that. Maybe one of the characteristics of the engineered mutation is that people with the virus eat their feelings! Lincoln wants more bacon. MORE BACON. Walter calls for "Aphid" to provide some, and then something dawns on him: He asks Lincoln what else he's hungry for -- pickled herrings, spinach? Lee says he doesn't know, but some onion rings would be nice, maybe some cheesecake. Sounds like the Betty Draper off-season diet! Lincoln trails off, staring at Walter's midsection. Walter grabs his own love handle, and then tells Lincoln to call Peter and Olivia, and tell them he understands.