The notion of sums Relies on the false Mathematical principle That one and one Is two; I've railed against This before, but here I am A different I, perhaps the Second person, an extension Of the first? I'm not sure; Every seven years every cell In the body is replaced And Theseus' ship Was still the ship A ship? A second ship? It's important to not say Because the saying implies That having children Making a cup of coffee Walking That these are acts of Replication Which would be Inhuman In a way I'd rather not measure