The loud pop was the electricity going outside in the town. This makes it quick and easy discover if a suburb of interest warrants further in-depth research using the guestimate/fundamental method described earlier. https://Evernote.com/shard/s370/sh/fb53d6ee-3f6f-a0ed-3a2e-72f6353dad08/QOpbQEwRf7dz2LFkVcj2COYY1fnJviO-3k3MPR51XXUJGTg3-AcA8a-mLw