"Perhaps not," the Doctor agreed. "But when your options are limited, it makes sense to focus on the technical aspects, doesn't it? Reintigration is only the first step. Focus on how everything works so you can ensure it keeps working." He gave a shrug, slipping his glasses back on. "Once you're sure things won't fall apart on you, then you can look into the other things, hmm? With any luck, much more will have survived the passing of time out in the city." The more he spoke of it, the more eager he was to see just how much had survived in the City. There would likely be far more of interest out there than in this cave.