This thread is going to sound like gibberish so bear with me here. I hope someone with knowledge about modal counterfactuals, framing conditions, and counterfactual definitiveness can chime in here.

Let's start out with the simple proposition:

In every possible world, a mortal will eventually succumb to death.

Now, let's break this down a bit,

"In every possible world" seems to be the framing condition, yet, is it not true that death instantiates the import of the framing condition in a self-referential manner to set the proposition as sensible?

OK, now, we have "a mortal". Again, it is tautologically true that every mortal will succumb to death. Or is it? There might be a possible world where a mortal has become immortal...? Could this not be true? What becomes of counterfactual definitiveness, then? Is it governed by "mortal" or the instantiating manner of "death" being a certitude here?

Finally, we have a sort of performative working behind the scenes in a pragmatic manner of "will eventually". I don't think much explanation is required here in terms of explaining why this IS true. And, yet death crops up here as the modal actualizer to be true.

Does any of this make sense?

I really don't know where this thread belongs, apart from my feeling that the lounge is the only place where it does not belong. Perhaps, phil of language, or Metaphysics and Epistemology. You decide.