A revolution is underway in which deep neural networks are routinely used to solve diffcult problems such as face recognition and natural language understanding.Particle physicists have taken notice and have started to deploy these methods, achieving results that suggest a potentially significant shift in how data might be analyzed in the not too distant future.We discuss soderhamn ottoman cover a few recent developments in the application of deep neural networks and then indulge in speculation about how such methods might be used to automate certain aspects of data analysis in particle physics.Next, the connection to Bayesian methods is discussed and the paper ends here with thoughts on a significant practical issue, namely, how, from a Bayesian perspective, one might optimize the construction of deep neural networks.