How can you distinguish intelligence form a sufficiently accurate imitation of intelligence?

By "sufficiently accurate" do you mean identical? Because if so, it's not an imitation of intelligence at all, and the question is thus nonsensical.

	▲	UltraSane 2 hours ago \| parent [-]
		"it's not an imitation of intelligence at all" But that is the key insight, how can you tell when an imitation of intelligence becomes the real thing?