now so all that for now I know it should be clear a few slides no all right um right okay so I'll just talk about how one more about bits back and some more modern instantiations of bits back coding into real algorithms that we can actually download and use and also in particular how fits back coding place with new types of degenerative models like a ease and hierarchical PA ease and flows instead of say just Gaussian mixture models right so the the core algorithm that that all these mute bits back papers are based on is this thing