problem but also they divide this into 10 what they call periods and i'm just going to draw maybe four periods right so this thing here they call one period where the whole thing is an episode now the purpose of the period is that at the beginning of each period the government the government can impose a new tax schedule so the government doesn't only fix the taxes once but it can change the taxes over the course of the episode right now this is what i find i i just don't see why so now you're formulating the