M.L. Martin
Adventurer
On the philosophical topic, there's a quote from Wizards Presents: Races and Classes that's stuck with me: "The new system [4E] is not overly concerned with simulating interactions between monsters and nonplayer characters when the PCs are not on stage."
Theorems we can derive from that design principle:
1. Mechanics should be applied primarily to things that matter to the ongoing game.
2. Things that matter are things that involve the PCs.
There may be certain design sympathies in this regard and others between 4E and the late, lamented SAGA Rules System (the card-based engine that drove Dragonlance: Fifth Age and the Marvel Super Heroes Adventure Game).
Theorems we can derive from that design principle:
1. Mechanics should be applied primarily to things that matter to the ongoing game.
2. Things that matter are things that involve the PCs.
There may be certain design sympathies in this regard and others between 4E and the late, lamented SAGA Rules System (the card-based engine that drove Dragonlance: Fifth Age and the Marvel Super Heroes Adventure Game).