It finally occurred to me why the radio streaming app I listen to on my walk to work would conk out on me every now and then. First, I deduced a pattern of occurrences, and initially ascribed those occasions to the the L.I.E. overpass which, I surmised, temporarily interfered with my reception. Upon closer examination of my phone I realized that I was actually picking up a weak wifi signal from something called Miller's Ale House, where I had eaten once, and whose network I had apparently used. As it happens, the internet service they provide customers is no better their food, and my interruption was caused by the switch from 3G, and back again, while moving through the restaurant's vicinity.
I have a lot of time to think on my walk, and this is what I think about.