If we understand something, we can describe it with an algorithm.
If algorithms for intelligence are by definition impossible, then understanding intelligence is by definition impossible.
So if true intelligence is something beyond our current understanding of the world (beyond algorithmic description). To me, this feels like god in the gaps applied to intelligence.
If a lookup table can predict human decisions with high accuracy given access to its senses and feelings, then either a human is just another can opener or intelligence isn't real.