Earlier quoted context omitted.
For an intelligence to be "General" there would have to be no type of intelligence that it did not have access to (even if its capabilities in that domain were limited). The idea that that's what humans have strikes me as the same kind of thinking that led us to believe that earth was in the center of the universe. Surely there are ways of thinking that we have no concept of. General intelligence would be like an imp…
Humans can survive in space and on the moon because our intelligence is robust to environments we never encountered (or evolved to encounter). That's "all" general intelligence is meant to refer to. General just means robust to the unknown. I've seen some use "super" (as in superhuman) intelligence lately to describe what you're getting at.
But if one has {a, b, c} and the other has {b, c, d} neither is more or less intelligent than the other, they just have different capabilities. "Super" is a bit too one-dimensional for the job.