Roy Andrew Miller, an international authority on the Japanese language, has argued for the relationship of Japanese to the Altaic family for about four decades now. And while scholarly opinion is not unanimous on this point either, there is even stronger evidence for the relationship of Korean to the Altaic family, and I believe that hypothesis is the majority opinion among ethnic Korean linguists studying the Korean language and its origins. Finally, the genetic relationship between Japanese and Korean, while still not established to everyone's satisfaction, is today generally accepted among comparative linguists.