[Mithlas]

These comments remind me of a video by Vsauce where he talks about the disagreement among the scientific community as to how many senses humans have (is smell and taste one unit? Is auto-kinesthesia or proprioception something different than touch?), but splitting up Perception to that degree could easily get crazy. That there are multiple skills for tiny niches like Savoire Faire when cultural familiarity is only 1-2 points...that gets into a separate topic.

Despite that, why would there be something bad with splitting intelligence? Given that we're talking about GURPS, we're not comparing humans to animals (there's a lot of differences between those two...like culture. Yes, animals have their own codes/systems of behavior determined by what's facilitated by their environment). We also have Naga, self-aware computer viruses, and Starfish Aliens. Considering these, I think it's equally valid to consider IQ something to split as to leave oversimplified.