She nods, solemnly. 'The current situation is completely unacceptable. You know I wouldn't hesitate to die for my duty if that's what was needed, but that's not what this is. This is the prospect of unending torture if we don't act.'

Picking a book out of the small stack, she starts flicking through the pages. 'I found another explanation of the mathematics I was struggling with. It makes more intuitive sense now. After that, I was able to move on swiftly. To here.' She jabs a finger at another page covered in complex equations.

Ari begins to explain exactly what they are and what they mean for wormhole travel, theoretically. She's expecting that much of it won't be new to him, so he'll follow it easily enough.