clearstream
(He, Him)
I wonder if genre conventions form a fourth type of fictional-fact? So that we end up withI mean, in a space opera, you're probably safe - FTL is such a genre cliche that you probably don't have to worry about players trying to fly their space ship to last week, but there are other situations in which this kind of thing can be an issue.
Type-I facts - things true in our real world and in the imagined world
Type-II facts - things not true in our real world but true in the imagined world
Type-III facts - facets of things true in the imagined world, that are of kinds that match things true in our real world
Type-IV facts - things not true in our real world but normed as true in kinds of imagined worlds.
When a candidate type-IV fact is nominated, it meets with less resistance than it would were it type-II, even if it is otherwise no different from a type-II fact. You've identified another pay off in deploying type-IV facts: they seem to come with 'rules of engagement' in place.
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