Intelligence just like memory must have a context in which we define it.
For example, different neural pathways for literacy and mathematical comprehension exist in the brain. While there is some overlap with different tasks (such as reading comprehension and mathematical expertise), the differences must be emphasized in order to be concise and clear. **A mechanic may not be good at reading, but there will a come a time you need his assistance, and in that time he is intelligence. **Intelligence can only be defined within context. This is a more constrict-specific definition that makes sense.
What must be understood is we all have a propensity for certain tasks, but we can condition ourselves to become more intelligent in them with discipline and the right circumstances. The school systems are inadequate for doing this because they are more concerned with arbitrary letter grades rather than real results that are shown in efficiently accomplishing tasks. Granted, you could say one is intelligent in earning good grades, but who cares? How is such a thing practical outside of societal expectations?
Similarly, there are different memory systems in the brain as experiments on HM determined. Procedural and declarative memory are different and significant empirical evidence verifies this. Temporal lobotomies can cause anterograde amnesia (i.e., the inability to form new declarative memories), but you can still learn new procedural tasks.
Is syntax the same as semantics? No linguist would argue this. Likewise, the skills of a mechanic, scientist, gardener, and etc. all differ. They are all intelligent in their own ways. In a sense, everyone alive is intelligent in survival, to some degree, otherwise they could not survive. So yes, intelligence can also be applied to survival, living or etc., but it MUST ALWAYS be relational, hence why constantly labeling others as intelligent or not is inconclusive.
Finally, there is no “you” that is intelligent. Intelligence is defined by action and is relational to specific activities (as explained). What I mean is, we should stop adding a fictitious cloud of associations to the “I” and cease saying, “I am intelligent” or “You are intelligent”. It is in one’s behavior that someone can discern another as intelligent or not, which he is not really separate from. Since one is always in a flux, intelligence {i.e., the ability to efficiently accomplish a goal-specific task} too is in a flux, so it makes sense to refer to it only provisionally, relationally, and singularly. There is no all-encompassing intelligence.
This definition was inspired by the Buddhist notion of “emptiness”.