Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Stahlman dismisses warnings over green liquid
S7E20
·
Inferno Part 2
To
Doctor links green liquid to Krakatoa
S7E20
·
Inferno Part 2
Why These Connect
The narrative assertion
"The inability to analyze the green liquid leads the Doctor and Liz to discuss it, and the Doctor again refers to Krakatoa as a basis of comparison."
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.