so what's actually that a little deeper here so basically she agent is the core thing the sparse awards means you just I mean here's the cake from now on Laocoon you get this one T round the cake from the real reward that we care about that's not enough we want more rewards that's exactly what this cue function thing is going to do we're going to define many other rewards and there's many other rewards are going to allow us to learn from a lot more signal and if you only had our one reward okay so this reward function that was defined here by