Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
T'Pel revealed as Romulan spy
S4E11
·
Data's Day
To
Picard defies Romulan ultimatum with resolve
S4E11
·
Data's Day
Why These Connect
The narrative assertion
"Mendak reveals T'Pel is actually Sub-Commander Selok, which leads to the arrival of more Romulan ships and Picard ordering a retreat."
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.