He paused in his pacing, but didn't stop moving. His hands started to tap and drum involutarily, but he used them to gesticulate the moment he realised this.

"Look around you. How many of us are around here, now? How many have TARDISes? It would be a simple enough task to find the equipment to terraform a planet or moon that was deserted, and adjust the workings and settings to achieve the results we wanted. It could work. Perfection would be nice, but I'm not expecting it. The details can work themselves out."