that the the more powerful the the model the better the log likelihoods that we get out of it so we should get better compression so here we're looking at a setting where the model is has a Markov chain structure over the wing variables so there lady variables ZL the L minus one up and seal the one the necks so this is the graphical model of a sampling path and and the the inference path accuse go going the other way and they're both Markov chains so this is a particular type of model that we're looking at and so if you had this