You: Why should I accept your opinion? You are going to have to define life for me, not just list those things that you think are or are not alive, before I can begin to accept your argument.

Aaron: It is immediately apparent whether a given thing is alive or not. Why should I spend time trying to define something so obvious?

How do you respond?

  1. It is not obvious to me. Go
  2. What is "obvious" is irrelevant. Go