Third Nacelle wrote:
Data's head is buried beneath San Francisco right now, and always has been, because Time's Arrow happened before itself. Same with Sisko as Bell.
That's the beauty of it. When nuData travels to meet Mark Twain, he'll leave a second head in the cave, leaving himself with heads to choose from in the future, and two memories to switch between. I am a bit confused as to how the two Bells would play out.