Cita en la eternidad

The collection covers so many facets of time and existence—I'm curious whether this was a deliberate thematic choice or evolved naturally during writing.

Many stories seem to question whether humans truly have control over their destinies. It made me wonder how Heinlein viewed human agency in the grand scheme.

There are so many intriguing concepts, but I'm interested in hearing which one stuck with others and what about it made an impact.