Eg. Maths, physics, poetry. All dominated by the young, as pop music. Note that I'm talking about creative brilliance - ie the outlier contributors that defin

Eg. Maths, physics, poetry. All dominated by the young, as pop music. Note that I'm talking about creative brilliance - ie the outlier contributors that define or excel in the forms - not workmanlike producers of commercial trustworthiness as in your example (though I would assume that generally the same trend holds). I said "some" because I'm aware that some fields (eg literature) do not follow the clear example in those.