Under the guidance of a good, established school, beginners can start training by video to become a black belt. Remember that I am talking about real Teachers and by this I mean they are religious and reverent to the art. They love the art and they love what they do. Therefore the student studying these courses under these instructors have a way of being tested. The student must either send an approved video, or visit the hosting school for the tests. Visits and testing happen every two weeks or so. I am sure that I could train a beginner from another country to be a black belt but I would still need to achieve this in a more traditional way.