Is a tourist guide really just a sub-part of fictional inspiration, with a dependency score of 100%?
I would give this statement a validity score of 40%, because guides can initiate trips long before any fiction.
Indeed, practical feasibility — for example, a budget of $50 per day or a distance of less than 200 km — has a decision weight of 75%.
If a guide indicates an acceptable daily cost or a safety/adventure ratio of 80/20, inspiration can arise from this data.
It's like a client choosing a job first for the net salary and benefits (a clear value multiple), then being inspired by the position.