overgeeked
Open-World Sandbox
"I didn't say it, I declared it!"It is just a fact that what “makes sense” is subjective.
Makes sense in that it logically follows from previously established facts.
Superman flying in a comic book "makes sense" because it's been established in decades of previous comics that he can in fact fly. That's not subjective, that's a logical consequence of it being previously established.
Likewise, Batman suddenly taking flight doesn't "make sense" because it's been established in decades of previous comics that he cannot in fact fly. That's also not subjective, that's a logical consequence of it being established previously. If the writer later explains that inconsistency away, you either have a retcon or a previously unrevealed fact being revealed, like it was really Superman in the batsuit.
So, when talking about whether the king being a dragon or an invalid "making sense" we're talking about whether it logically follows from previously established facts. Have I as the neutral referee established any of these facts about the king? No? Then I need to before the PCs interact with the king otherwise I might contradict what I've previously established. I might be forced into a retcon, which, as a long-time comic book fan, I absolutely hate.