Genetic Fallacy: Asserting that something is nothing more than what it was when it was first made or created. Refutation: Things are defined by what they are currently. Example –  Abby: Bob, contraceptive use does not prevent babies. What is in the womb is just a little blob of undifferentiated tissue, not babies. Side Note: This is very similar to the Reductive Fallacy, which says that a thing is nothing more than one of its parts. This one focuses  not the parts but on the history of the item.