In this chapter, we learned about neurons, which is an incredibly fascinating branch of research, focused on heavily for several years. We also learned about the famous traveling salesman problem, what it is, and how we can solve it with a computer. This little example has wide-reaching applications in the real world. In our next chapter, we are going to put all this neural knowledge we have gained and apply it to Restricted Boltzmann Machines (RBM) with a Deep Belief Network (DBN). This chapter will be sure to add a lot of terminology to your buzzword-compliant checklist! In the next chapter, we will answer the question that we all, as developers, face: Should I take the job?