A good map, or model, fits the territory: it allows one to make accurate and reliable predictions. That is what it is, for a map to be a good one.
is not obviously equivalent to this claim:-
The things in the map have their counterparts in the world.
Causation is there also, just as much as pianos, and gravitation, and quarks.
If you accept usefulness in the map as the sole criterion for existence in the territory, then causation is there, along with much else, including much that you do not believe in ,and much that is mutually contradictory.
This claim..
is not obviously equivalent to this claim:-
If you accept usefulness in the map as the sole criterion for existence in the territory, then causation is there, along with much else, including much that you do not believe in ,and much that is mutually contradictory.