Phoebe: There have been many reported sightings of strange glowing lights, but a number of these sightings have a straightforward, natural explanation. They occurred clustered in time and location around the epicenters of three earthquakes, and so were almost certainly earthquake lights, a form of ball lightning caused by stresses in the ground. Quincy: I am skeptical that the association between the lights and the earthquakes is anything more than a coincidence. The theory that ground stresses related to earthquakes can cause any kind of lightning is extremely speculative. In responding to Phoebe, Quincy ["offers an explanation of the glowing lights different from Phoebe's", "criticizes Phoebe's explanation as unsubstantiated", 'accuses Phoebe of introducing irrelevant information', 'challenges the accuracy of the data about sightings that Phoebe takes for granted']