Here I am, returned to my roots, writing a sequel to the very first story I read on Ficly.
I had to do my best to make it worthy of being a sequel to Phil Plait’s story. It meant trying to write something that’s informed by the relevant science, and consistent with it, and it definitely meant refreshing my memory of that science by re-reading chapter nine of Death from the Skies for research. It meant including one or two explicit cosmological reference (such as the bit about the cosmic horizon). It meant taking it seriously.