Ночные крылья

Silverberg's depiction of a dying Earth is so immersive — did the setting shape the story’s darker themes or vice versa?

The characters seem to cling to hope amid despair — what do readers think Silverberg was suggesting about human nature in such times?

The mix of genres gives the story a unique flavor. I’m curious whether Silverberg envisioned this hybrid from the start or developed it as he wrote.