Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Selris's recounting of the Krotons' apocalyptic origin (their poisonous rain and centuries-long control) directly motivates the Doctor's preparation for confrontation in Episode 20."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
Selris's oral tradition provides the Doctor with the historical context needed to understand and challenge the Krotons' machine-based control. This backstory drives the Doctor's urgency to investigate the Learning Hall's under-hall in Episode 20.
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.