destiny – Where are aspect (narrative) authorizations covered exhaustively?

Repeatedly, in the context of the discussions and questions, including the questions asked here, I continue to get into the subject of aspect permissions (as in narrative authorizations – things that can not be done in a given situation without the good appearance, and can be with, or vice versa, as opposed to permission to obtain extras). And people always seem to have a lot to say about it (often in a free, overnight way, similar to the style of Hans book), with the certainty that "this is how the system works" do not obvious to me, as if they were based on some of the fundamental texts of the system that I missed.

And I would like to find parts of the text that I seem to neglect. That is, find the based, the common root read more carefully the conclusions that seem to be quite common (and similar) among veterans of society.

The closest thing to a base I've found seems to be the 76th page of the base book, where it's all about using Aspects for play a role (with the example given showing how a role of GM represents the reactions of NPCs according to the appearance of the PC). But there seems to be a huge leap forward on the part of NPCs who know you are the The strongest man in the world and their behavior is enlightened by this knowledge "to" You are the Legendary Tomb RaiderSo, of course, you can understand and speak the obscure, isolated dialect of Nahuatl you just met for the first time. " What do I miss?