reasons why a net using mmhmm yeah maybe also dumping in here if you look at the Brendan frame geoff hinton paper it managed to do compression with a VA e and arithmetic coding but it had a bunch of overhead that you encountered because I think they could a nice look cute and this back axle or like a stack and so there's an overhead occurred then look at the Townsend on paper you can see how to make it all compatible through using a Dennis and get much better efficiency and compression efficiency tanam the previous paper that uses arithmetic