She blinked and rocked back on her heels fractionally, not exactly surprised by the revelation or the manner of it but by McCoy's actions in trying to 'fix' it. Three months. Three months of pain and suffering for his father, already an old man, already at peace, aware of his own wishes. And McCoy so wrapped up in his own wishes that he couldn't see what was right in front of him.

Not that she could blame him. Given the choice between holding on to her own father and letting him go, Uhura probably would have chosen to hold on tooth and nail. But then, hers had been very different circumstances.

She shook her head, just a slight movement, in lieu of an immediate answer. "You think we want to watch you?" Uhura countered quietly. "We don't have.. any proof that this is reality. No proof that what we do here will change anything." If anything they had proof that the opposite was true, but she didn't want him to feel stupid for even trying. "We're not arguing with you to make you suffer more. We're doing it to stop the suffering."