I'd toss in that deeper reading of the Finnish school system reveals that they don't need to be famous for gifted education. What they have is a very strong support for individual learning. Preschool and nursery care are focused on building school and social meta-skills and parents are encouraged to send their kids to those. They have mixed grade classrooms, continuing education and support for teachers, very high hiring standards for teachers, acceleration happens in the classroom; teachers will often stay with the same group over years to help nurture and maintain their knowledge of the kids abilities. They do allow early entry for kids who have a passion to study. And quite a few graceless schools, free movement between schools, etc.
