Just a quick patch-on to the patch about NPC's.
I was thinking more about this game of God's called Life,and about all the characters in it.
To each individual player, or person, isn't everyone else an NPC? The answer is obviously no.
No one is an figment of anyone else's imagination.
One can never know for sure, because all it takes is extremely advanced technology to give an NPC in a game an intricate brain possible of being creative on its own.
Kind of like creating artificial intelligence in real life, but easier.
But online multiplayer is a much more pleasant way of viewing God's game.
More like an open world game like World of Warcraft or RuneScape then Halo Multiplayer, btw.
In fact, I can't begin to try to explain the world w/o it. It just fits so well.