If humans are basically physical machines, as naturalism would have us believe, then sin would be a simple mechanical failure. Without the ability to choose, humans are not responsible for their actions. For example, if your computer stops working, you don't hold it responsible and punish it by making it sit in the corner for an hour until it starts behaving. So naturalism would have us believe that humans, like computers, cannot be held responsible for their actions.
Scientists have discovered what they say could be fossils of some of the earliest living organisms on Earth. They are represented by tiny filaments, knobs and tubes in Canadian rocks dated to be up to 4.28 billion years old.