[ Her touch is pretty soothing, but he'd feel so much better if he had something to focus on and without any dark rooms to search he reaches for that old, familiar safety blanket: data.]
If we assume that this power outage extends to the life support system... with the established cubic feet of the dome and the current number of inmates, we'd have enough oxygen to last us... [ The numbers are there, he's just not in a position where he can spit them out unprompted. ]