you know how to encode each component let's back her to your way to encode it against a mixture model which likely there better fit your data distribution and as we know the closer you are to distribution the smaller K diverges the more efficient your coding will be and so it allows us to the mixture model which might be a better fit which in turn would result in higher efficiency encoding another question there is the new party between Edinburgh Nubia that's a really really good question so one of the big things that I think Jonathan