Airplanes in this analogy are essentially the collection of matrix multiplications that emulate reasoning in a very rough but useful manner in an LLM.
It's unclear whether a rocket ship is a multimodal neural net. Or some sort of swarm of LLM's in an adversarial relationship, or something completely novel. Regardless, we might be as far between LLM's to ASI's, as airplanes are to rocket ships. Or not.