This is a great point, and one we should have addressed in the post. That said, there is not generally a spike in usage at lunch for anything else. For many o

This is a great point, and one we should have addressed in the post. That said, there is not generally a spike in usage at lunch for anything else. For many other metrics of interest we see a familiar sinusoidal wave of usage, with the low point at around 3 or 4am, and a high point at approximately 6-7pm. Thus the spike in usage at lunch turns out to be quite unexpected.