Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor forced to sonic open starliner door
S18E10
·
Full Circle Part 2
To
Amphibian seizes Doctor's knife
S18E10
·
Full Circle Part 2
Why These Connect
The narrative assertion
"The Doctor’s use of the sonic screwdriver to open the Starliner door (Act 2) allows him to enter and explore the reception deck, where he finds the river fruit and encounters the amphibian—expanding his understanding of the planet’s ecosystem."
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.