The Rod is immovable in relation to what?

[dafrca]

I've never understood the appeal to "realism" when you have 10,000 lb flying lizards who spit fire and can rewrite reality itself on a whim.

The main good reasons I've seen are:

(1) For the most part, the rule in RPG is "things that are considered intuitive for the players (GM included), are true unless it is very important for the game that they are false".

This is why I have started to use the word "verisimilitude" rather than "realism". For me, most of the time I accept what happens in game if it feels consistent with the setting and other things in the game. So for example: if a 10,000 lb lizard can fly and so can a medieval cog style ship, then I expect it should not be an issue for my character to fly using a spell. It has nothing to do with reality, it has to do with setting consistency for me almost all of the time.