i don't like the fact that there is only two because um well this i guess this gives a significant bias to one or the other direction depending on the order that you do them in if if i had done this i maybe would have used three of them because it depends on how you want to aggregate information right like here you train the network specifically to aggregate information first in this direction and then in this direction which might work and it will give you that sending around information anywhere so maybe they've actually tried and it