Causal
medium strength
Narrative Connection
How these two moments in the story relate
From
Household under alien fire erupts in deadly revolt
S19E13
·
The Visitation Part 1
To
Strangers trapped by villagers in woodland
S19E13
·
The Visitation Part 1
Why These Connect
The narrative assertion
"The green beam's destruction of the pewter plate in the Servant's Hall (Act 1) parallels the Doctor's identification of potassium nitrate and sulphur as components of gunpowder used by the villagers (Act 2), both revealing alien energy signatures altering human technology."
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.