Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Tryst begins the Vraxoin transfer
S17E16
·
Nightmare of Eden Part 4
To
Vraxoin transfer triggers hasty escape
S17E16
·
Nightmare of Eden Part 4
Why These Connect
The narrative assertion
"Tryst’s switch-on of the laser to initiate the Vraxoin transfer confirms the completion of the smuggling process, prompting him to declare success and begin the escape sequence, which the Doctor races to intercept."
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.