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is the car stages
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and they get put together like a sandwich
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to make cars?
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Or should we think that the fundamental thing
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is the car extended through time
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and it can be sliced up to make car stages?
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For our purposes,
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I think we won't have to go there.
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It doesn't really matter.
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As long as we're comfortable talking about
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entire space-time worms, the cars,
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and the slices or the stages.