I was talking to a guy who is an Atheist today. We started talking about the afterlife. He said that he doesn't believe in life after death for 2 reasons. 1. He believes that the concept of an afterlife was "made up" by people who fear death. 2. Another argument he made for no afterlife is "Just as we did not exist before we were conceived, so we do not exist after we die" How should I answer this guy?