they have experiments to prove this or to show this if you use one if you actually leave one of these layers here so in the end they I guess they converge on three projection head layers and then they only throw away the top two and like they make this big deal out of the fact where you know I can just call I can just call this part right here now the encoder and I don't so I don't know exact like I don't see the giant deal here like you've just made your network one layer bigger and now you consider that to be your encoder and the