Ahnehnois
First Post
What is that supposed to mean? Whether you explain it as relentlessness or not is irrelevant, it is a discrete package of something. A character may or may not have GWF, but whether or not this is the case is known, and is a choice of the player, and is an intransient property of the character, and is discrete and separable from any other property of the character. And that something has an effect only under the condition of the character failing the task. That's hard to rationalize regardless of whether you describe the something as a discrete skill or a manifest character trait or a nebulous cloud of luck.The character with GWF is relentless. GWF is a game element; the character's relentlessness is an in-fiction phenomenon. GWF doesn't cause the relentlessness, and is not a "boost to determination; it expresses the character's determination in mechanical terms.
My explanation is only a "process simulation" to the extent that the mechanics of acquiring the character ability explicitly require. You can go very abstract or very metagame with trying to explain how it works, but the bottom line is that this is an ability that a character acquires and uses in a systematic, reproducible way.