I have heard that once or twice. [or a bajillion times. he watches Dr Who, man, and believes in alternate universes. that stuff's fascinating, at least in practice. now that he's actually faced with it being a possibility, England's a bit scared]

If the machine here has access to different worlds, and different versions of worlds, I wonder why it doesn't bring the same people back. I would think bringing back the same people would be more helpful.