Each moment of play/Every game is an unique experience, due to context, timing, situation, the player’s character, the players relationship and the gamedesign, and all these parameters relate differently dynamically… that is why games are complex systems, and hard to control, but that is also the magic of play, the dialogue and negotiation we as gamedesigner need to have with each player, the player is somehow in total control of the game experience (even if he does not perceive it that way at that moment).
In game design we only co-create with the player, the player makes the game work.
(ps: many gamers wish to understand the game designer, as to meeting God in real life. I also believe many game designers love creating a world and control the players experience and actions as a ‘god’)