is because the impedance of the rail words are not available and I'm not gonna train I'm not gonna learn them because my layers are not trainable so I cannot use them then when I will do some global enumeration or global max so I always multiply those entities by zero otherwise I will use some random values that will not change during the trader this part this was quite helpful in to improving the scroll and later I didn't use the global average chain because I have a lot of zeros embedded in my in my my inputs