Lou getting to talk about his pet subjects has caused him to all but forget why he'd intended on talking to Jack in the first place, and now he was feeling a little nostalgic.

"Art, actually. All poetry is art, but not all art is poetry, y'know? I did my dissertation on Liminal art, what it all means, the whole shebang. But it doesn't really matter any more," he says, though he seems a little sad to have to dismiss it just as quickly. He changes the subject instead.

"You must know a lot about Liminal biology?"