Hannibal found the movement curious, and tried to see what was happening, even through the darkness. He was not the type to be overly interested in machines, he was of the biological, but he still liked to know the way things worked, and he still found it intriguing to see the mechanisms that made a thing tick, as it were. He'd once spent an afternoon looking upon the combustion engine of a modern car, learning everything that the mechanic could tell him. Of course, once he was filled with the knowledge, he'd had no further interest in the workings.
The human body and mind were far more complex.
"We have great passion for what we do." Hannibal fell to the explanation with gusto, hearing the change in tone in his friend, and deciding to indulge the playful query. "I felt, when I first met you, that there was something inside that was similar to myself. Like calls to like, and I had seen a glimpse of your darkness. I dared not approach you about it directly, lest I unintentionally lay insult at your feet and drive a wedge between us. It seems we both have histories steeped in the misery of the world, which we have both come through to become the men that we are. We share incredible intellect, though perhaps not on the same purview." Even in the darkness, Hannibal characteristically lifted a brow. "Shall I continue?"