"The zygote is the cell formed when the sperm fertilises the egg . The zygote has no brain , it has no conciousness . You have two tables , one with a small test tube which you know holds a microscopically small living zygote , and another table with a live baby . You are told that one of them will be destroyed and you have just two seconds to decide which , or both will be destroyed . Without a seconds thought I would immediately point in the direction of the zygote , and save the life of the baby . Extreme pro-lifers on the otherhand would probably end up killing the baby or both via indecision and inability to make a choice in just 2 seconds . That 's the morality of pro-life for you : the inability to realise that the chemical reactions that happen when a sperm meets an egg do not define a human person . Am I wrong ? I do n't believe so . The sperm meeting the egg is a really random point to decide the emergance of a human person . Why pick that point specifically ?"
"Let me pose a hypothetical question . Same scenario as yours above but instead there is a genetically normal zygote on one table or on the other table , there is a mentally retarded newborn baby ... which one will you choose if you had 2 seconds to choose ? You see life is existant at both stages , at the single cell and the newborn baby , but our view ( sometimes ignorance , sometimes selfishness ) is why we choose what we choose . So do tell me which one you will choose ?"
"The sperm meeting the egg is a really random point to decide the emergance of a human person . Why pick that point specifically ?"
"You see life is existant at both stages , at the single cell and the newborn baby , but our view is why we choose what we choose ."