The article: "Surely the smartest redhead in Ireland,” read one headline about 16-year-old Patrick being named Young Scientist of the Year for developing a programming language and artificial intelligence system."
Are "redheads in Ireland" stereotyped as being particularly smarter or stupider than other Irish? That's the only way I can make sense of that headline - it makes as much sense to me as "the smartest black-haired person in Ireland"
Because redheads are so unbelievably common in Ireland, calling him the "smartest redhead in Ireland" is a clever little joke that draws a contrast between his exotic intelligence (building an AI system, desigining a programming language) and his incredible ordinariness (having red hair in Ireland).
No -- "smartest red head in Ireland" just an arbitrary qualifier and a throwaway comment -- if anything it just emphasizes the number of red heads in Ireland.
10% of Irish people are redheads while about a half carry the gene apparently. I'd be willing to bet the dark haired brother has forearms covered in freckles