"Oh... Mmn, no. I don't think it hurts," he reassured Pulse, placing his hands out like he was just making sure he understood. "It sort of feels like... Like that part of me isn't there."

He let his finger trace the parts of his head where he couldn't feel any sensation at all. "Is... That what pain is supposed to feel like? It doesn't feel unpleasant, but I'm not sure what to expect when I'm feeling pain."

Because he was an AI, and this physical world was still new to him. Pain wasn't a sensation Alter Ego understood fully - he'd tripped, he'd poked himself with the tip of a pencil, but those didn't feel the same as what he felt on his head. "I don't feel anything, there..."