hygiene is set of rules that one learns - it is knowledge

your brain hearing, comprehending and following those rules - that is intelligence

why do you keep confusing CPU speed/isa and contents of SSD? and arguing that it's the same thing?

Because comparing the human brain and the way it is thinking and seeing and interacting to/with the world to physical/mechanical things like CPU/SSD brings with it huge abstraction gaps, to the point of making the comparison null.