There was a graph passed around when I was doing undergrad physics showing a weighted average of age at most impactful publication by field, with the results as

There was a graph passed around when I was doing undergrad physics showing a weighted average of age at most impactful publication by field, with the results as I recall them now roughly in line with what one might expect: physicists peaked in their mid-ish 20's, mathematicians in their mid-late 20's / early 30's, and the for the other listed fields age steadily increases in proportion with the value of synthesis and experience versus a huge working memory and a razor sharp mind. I was unable to find that graph looking now, if anyone recalls it with more detail I'd love to see it again.