Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Zoe's proposal of the depolarizer as a countermeasure to the Cyber-control signals (from Episode 16) directly informs the Doctor's strategy in Episode 17 to infiltrate Vaughn's headquarters via the sewers to disrupt those same signals."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
This connection drives the temporal urgency of Episode 17's infiltration plan. Without Zoe's earlier identification of the depolarizer, the Doctor would lack a concrete tactical solution to counter the Cybermen's global signal. Their continuity ensures the causal chain of the invasion's counter-strategy spans episodes.
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.