When different parties assign different meaning to even base concepts—like Up & Down... each cannot explain to the other what they themselves see as clear and self evident. In my past experience(s!) with this exact same argument, over the years... One side sees a hiking sim as a game about being the character—personally; and is seen as roleplaying...(as they see fit... Think Westworld, or the Star Trek Holodeck, where the visitors are experiencing the world, as if in a theme park ride). This kind of player defines roleplaying as the game presenting the character's environment, and doing what they would with the character's equipment and/or special abilities—being the wizard, being the Parkour thief; playing at being Robin Hood, rather than choosing the path of Robin of Loxley Hall. This kind of player would probably love Skyrim, and see any survivalist game (like Farcry or Stalker) as the ultimate RPG, because of its strengths at simulating the environment; and for the very reasons that I and others would disqualify it as being an RPG. From my perspective, roleplaying is not, "What I would do with the strength of the Hulk", it is, "What would David Banner do with the strength of the Hulk".