Schrödinger laughed. "Everything, Herr Doctor! I can be anyvhere, do anything! I can stand at the beginning and end of the universe, at the same time! I'm doing it right now. I'm everyvhere, everyvhen. I know...so, so much, Doctor. Vhy," he grinned, lowering his voice to just above a whisper, "I'm even on Gallifrey."