Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Romana assembles final Key piece
S16E24
·
The Armageddon Factor Part 4
To
Stabilizing the Chronodyne core in the Key
S16E24
·
The Armageddon Factor Part 4
Why These Connect
The narrative assertion
"The Doctor improvises the sixth piece of the Key to Time using Chronodyne, a highly unstable material. Romana and K9 then discuss its compatibility and functionality, which later becomes crucial when they must stabilize the time loop and manage its deterioration."
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.