[ Harold has to think that one through, pulled into the intellectual puzzle as always. He and Root differed slightly in their intellectual interests, but they overlapped enough... Hmm. She was always just more poetic than him. ]

Schrödinger was famous for redefining how we understand the position of electrons. He said they couldn't be measured as physical objects but by the shape they leave behind. We only know the truth of things based on the impact they have.

[ He shrugs, stiff and awkward with the motion, then smiles sadly. ]

Of course you miss her. I always will. [ Rueful, ] I've never had anyone challenge me so much. [ Intellectually and morally both, and she was absolutely relentless about it. ]