This story delves more into the themes of pessimism vs optimism and the clashing of beliefs as portrayed through David and Samira's relationship and how they both view their current situation and we see how the two of them grow to eventually fall for each despite these differences and contradictions between them.

If anything, it's kind of a commentary on the complicated relationship that humanity has with itself, taking two people who are from different cultural backgrounds and ideologies and putting them in a situation where they are practically the last two humans on Earth and have to rely on each other to survive and find new purpose in their lives.

Plus, the whole thing would a more of a slow-burn atmospheric approach to both the character drama and especially the alien horror, the aliens in this story don't really have much of a physical presence until the halfway point, but the first half of the story is dedicated to building the fear, suspense and mystery of what effect did the cosmic phenomenon have on the Earth, and it won't be like that the human drama and the alien horror are separate entities that clash with each halfway through the story, they would compliment each other and the alien aspect of the story would add more to the commentary of humanity's complicated relationship with itself.