She's trying really hard to understand where his thoughts are going. He doesn't make it easy, but that last part sinks in. The Red Shift. Julie doesn't fully understand what that is yet - what it means - but she knows it fucks this place up when it happens and there's a hell of a lot more to it than they know so far.

"Easier than places?" she asks, lifting both eyebrows at him then making a small 'follow me' head gesture, working her way further into the building.

"Or the ghosts?"