Miss Danester spoke while having documents maneuver around Shard.
"The first confirmed case of 'Spontaneous Combustion of Light/Light Fusion' of this era occurred in the year 403 of the Common Era Calendar of the Sixth Era, subsequently reappearing every hundred years or so. In modern times, after its documentation in 1513, the frequency of these unexplainable incidents increased, but still only resulted in a death or two every few decades. Compared to other threats faced by the Material World, this type of incident is actually extremely low in danger."
Although she spoke cruelly, it was also true. Given that even the sacrifices brought by the progress of ordinary people's technology aren't this few. This bizarre phenomenon of 'Spontaneous Combustion of Light/Light Fusion' not only limits damage to some unlucky individual, but it doesn't spread or infect. Even if it's a relic-type event, it would likely be categorized at either Poet-Level or Scribe Level.
