to this entire thing and train another neuron that call a policy network to figure out what is the best action that should take so as to minimize the expected value of the cost and it's a it's not reinforcement running it's all differentiable so it's just back prop okay no no reinforcement there if you do this it doesn't work very well you have to regularize the system by making sure it stays in regions of the space where the ford model does a good prediction which are not going to go into the details off and then after you do this