Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor forces entry into Dalek capsule
S4E9
·
The Power of the Daleks Part 1
To
Doctor identifies Dalek alloy and triggers memory
S4E9
·
The Power of the Daleks Part 1
Why These Connect
The narrative assertion
"The Doctor examines a piece of metal which leads to the discovery that they are identical, therefore it's a direct cause and effect relationship."
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.