A decade ago, I wrote a book that comprehensively surveyed the landscape of youth sports. I wanted to know: How did the United States become the world’s sports superpower while producing such a physically inactive population? What contribution, if any, did our sports ecosystem play in producing these seemingly opposite outcomes? And, has any nation figured out a more effective model?

France. Germany. Australia. Canada. Spain. Cuba. China. I studied them all.

A few weeks ago, finally, I found what I think is my answer.

Imagine a society in which 93 percent of children grow up playing organized sports. Where costs are low, the economic barriers to entry few, travel teams aren’t formed until the teenage years — and where adults don’t start sorting the weak from the strong until children have grown into their bodies and interests. Then, the most promising talents become the most competitive athletes in the world, on a per-capita basis.

I am talking about Norway.

The country found its way onto my radar in a meaningful way last year at the Winter Olympics in Pyeongchang, South Korea, where Norway, a nation of just 5.3 million, won more medals, 39, than any other country in the history of the Winter Games.