i believe what's happening is that they you know get a new sequence then they decide on this pattern right here once and then they use this layer after layer the same pattern again so you can see that um in the traditional attention information can basically throw flow from each of the nodes to each other node in one single step right because each node is connected to each other node you see this in the graph right here however if we only select a subset then you know it needs to if if i want to go from as i said from here to here then i