...they'd solve problems in entirely different ways, out of necessity for not recognizing patterns as easily. And then you can reflect that intuition to understand what it would be like to be more intelligent than you are: someone who would also solve problems in different ways, for seeing their structure more easily...
Let me unpack this a bit; it annoys me to end that every person depending on his/her coterie ( think technology coteries, humanities coteries, political/legal coteries etc) seems to nourish his/her own definition of what intelligence is and how - if at all - it can be measured and quantified on a nice linear scale.
Surely we all agree that such a definition and quantification is useful. I hope that is not up to debate. Only the most hyper egalitarians, insisting on the absolute equality of social statuses of all humans, would refute the utility of such quantification.
For instance, most learned, secular and urbane people do not think twice before frowning on religious zealots. Their views and outlook of the world seem like they belong in the stone-age. Whatever their scriptures say or hold, a religious devotee has to suspend the most basic premises of logic and reason to be able to subscribe utterly risible notions of how one ought to conduct his or her life based on preposterous doctrines.
In essence they almost invariably have to belong to a lower order of intelligence (if you set aside the atypical cases of candidates who are esteemed scholars, scientists and technologists, who are nevertheless fervently religious, of whom we can be sure there are more than a handful).
Surely we should be able to define - using certain parameters whatever those are - and quantify this "lower order of intelligence" in an objective manner.
After all we just cannot describe their quantum of intelligence through purely the notions - as moronic those notions might be - they subscribe to. There has to be an objective assessment.
Since such a quantification is useful - for purposes of classification or otherwise - what then is the most current (more or less universal) consensus on the measure of intelligence?
Obversely, when defining stupidity, is there no single measure that more or less captures "the congenital lack of capacity for reasoning"? [1]