1. Conflict: A short story needs a central conflict that drives the narrative. This could be an external conflict (person vs. person, person vs. nature, person vs. society), or an internal conflict (person vs. self). Without conflict, there's no tension, no sense of urgency, and no reason for the story to unfold.
2. Theme: While not always explicitly stated, every good short story explores a theme, which is the underlying idea or message the author wants to convey. This theme can be about love, loss, redemption, courage, or any number of other human experiences. The theme gives the story meaning and resonance, allowing readers to connect with it on a deeper level.
While other elements like character development, setting, and plot are crucial, conflict and theme act as the bedrock upon which a successful short story is built.