Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor recognizes an unplaceable threat
S7E12
·
The Ambassadors of Death Part 1
To
Doctor Demands Signal Decoding
S7E12
·
The Ambassadors of Death Part 1
Why These Connect
The narrative assertion
"Driven by the strange sound he has heard which he shares with Liz (2bcd1d39478ce443), the Doctor questions the Brigadier, fixated on the noise, asserting its significance (3231327afc789b03)."
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.