It is my kind of thing! And I approve of the liberal use of flags here..
https://www.onlinevisa.com/news/worl...%202nd%20place.
I'm just not sure that powerful is the best wording when you are assessing one particular element of a passport - a very important one, but there are other roles a passport serves too, which is why I asked whether it considered those.
Anyway, it is interesting!