Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
The Doctor explains the fourth dimension trap
S2E26
·
The Space Museum
To
TARDIS as Exhibit Reveals Predetermined Fate
S2E26
·
The Space Museum
Why These Connect
The narrative assertion
"The frustration felt by Vicki and Ian as they wander endlessly through identical rooms (beat_4421dc392bbf73d9) directly leads to Barbara's discovery of the TARDIS as an exhibit (beat_99bfc2eddbcc155b), signifying the true danger of their situation."
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.