If the argument is about how the world of people (as distinct from scientific conclusions) works, then life experiences are important information. What sort of argument about the world (say, an argument about why people are poor) should ignore life experience? Admittedly, the experiences of two people aren't enough, but at least that's a start. It's also worth checking on whether one of the people is arguing from no experience.
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
And, while this is an accidental exception, future open threads should start on Mondays until further notice.