it seems like a general phenomenon that our scientific understanding decreasing with the complexity of the system. in classic physics, we could have very clean equations capturing the dynamics of a system. this is not true any more in chemistry&#x2F;biology&#x2F;social science. modern deep learning pipeline, compared to its shallow counterparts, gains more complexity, so it&#x27;s not surprising at all to me that we are not able to understand it well at the moment.