This may or may not have an objective answer so Mods can move it to IMHO if that’s where it rightly belongs.
Ever since I was a young child I have been labeled as having average intelligence. Not smart. Not dumb. But average… which I’m generally okay with.
Compare this to my older brother who was always considered to be of high intelligence. How did they tell in those days? Certainly by testing in school, his grades, an IQ test he once took, and his ability to compete in advanced classes.
I would never argue that my brother wasn’t/isn’t smart. But I believe he had/has a not-so-secret weapon that I never had and never will. Namely he has a better than average memory. He recalls events from 40 years ago I have no recollection of and has wonderful short term memory also. For example he can still rattle off baseball stats from today all the way back to the 1960’s.
It seems that people with good memories can recall facts and knowledge that allows them to perform better on tests. If they test better, they get promoted to advanced classes, and being promoted gives them an edge over “average” kids that don’t have “as good” memories.
Now my memory isn’t terrible… but it doesn’t hold a candle to my brother’s. So the real question is… how much does memory factor into our perception of someone’s intelligence? If I could remember more of the stuff I learned in elementary school I would have done better in high school. If I could have remembered more of the stuff I learned in high school college would have been much easier for me. And if I could remember what I learned in college I would appear much smarter now than I do.
Am I the unfortunate victim of poor memory? I’m not looking for an excuse… just trying to understand the link between a good memory and overall intelligence.
BTW, did Einstein have a better than average memory?