Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Leela securing navigation data and coordinates for the TARDIS (E6) directly enables the Doctor's later physical breakdown in the Isolation Ward (E7), as it is this data that allows them to reach the Bi-Al Foundation where the crisis escalates."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
This connection carries the Doctor's mental assault forward, as the navigation data securing the path to the Bi-Al Foundation is the same path that leads to the Nucleus's spread and the Doctor's eventual physical manifestation of the virus. Leela's decisive action in E6 is the cause of their presence in E7's crisis.
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.