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There is a very old shrine in Japan, built of wood. Probably constructed in the 13th century but over time, every single piece of the building was replaced. Now can we say that this is still the oldest building? It has new elements. Along the same ways, can we say these are old trees, since they are just the clones of an even older tree? When we clone ourselves, we won't add the original age to the clone age, do we?