The analogy between FBP and external-world realism fails because sense perception provides a causal mechanism linking knowers to the external world, while abstract objects are causally inert.

?Rate how convincing each reason is below to see the overall strength.

No one has weighed in yet. Be the first to share reasons for or against this statement.

External-world realism(Epistemology and metaphysics): The view that there is a real physical world existing independently of us and our thinking, and of a kind that gives rise to accurate sense perceptions
FBP(Philosophy of mathematics): Full-Blooded Platonism — Balaguer's term for plenitudinous platonism, the view that abstract mathematical objects exist plenitudinously
Knowers(as the subjects trying to understand reality): People or minds that have knowledge or awareness of things.
abstract objects(The target of Platonist ontological claims): Objects referred to by singular terms in literally true sentences that cannot be paraphrased away; includes mathematical objects (e.g., numbers), propositions, properties, relations, sentence types, possible worlds, logical objects, and fictional objects.

Based on where you are in your exploration