Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The Doctor's urgent confrontation with Borusa about the Great Key's threat in Episode 25 forces Borusa to confront the artifact's real power, which directly informs his understanding of the Doctor's warnings in Episode 26's TARDIS pool scene."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
Borusa's skepticism about the Great Key (Episode 25) is broken down by the Doctor's moral and logical pressure, enabling Borusa's subsequent alarm in Episode 26 when the Doctor warns him about Rassilon's artifacts. This shows Borusa's evolution from detached bureaucrat to engaged participant.
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.