Debating, unless, maybe, with yourself, is an inherently biased process. Already, you have mentioned a bunch of debatable stuff.
The infinitely better exercise is to try to figure it all out. No playing around. Put your life on it. Then there is as much benefit to failing as to succeeding. Let the realms of religion versus non-religion, and the like to the "great debaters".
The realization that we really and actually own nothing, not our money, not our time.