as a result of this as you as you may be able to see every single uh every single path is kind of a maximum length of two because if i want to go from any node to any other node i can simply you know send information to this global node and then the global node in the next step can send information to whatever other node and that is a property that they use in their proof that this tension mechanism is as sort of as powerful as the classic full attention mechanism and we'll go through that in one second but first i