will say the predictable thing and marty sullivan will say this and bob mcintyre will say that jane gravelle will say this. we would not have alluded about today, but our goal today was to move a little bit beyond the conversation about whether dynamic scoring is even the best thing to ever happen to washington or the worst thing to ever happen to washington, and to instead focus on little more on what is it actually mean and how do you do it. and this is of course newly relevant because of the house rule which i printed out and forgot to bring down but which requires the joint tax committee which does taxes, and the congressional budget office, which despite what some people think does not score taxes to take into account the macroeconomic effects of policies and their feedback effects on revenues. and this is hard. are a lot of people think it's long overdue. there some people who think that it will lead to bad fiscal policy over time. what we're going to focus on today is exactly how can we be done, what assumptions you would have to make them what of the challenges that the jct and the c