Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Radiation Exposure and the Doctor’s Lie
S1E6
·
The Survivors
To
Ian Exposes the Doctor’s Lie
S1E6
·
The Survivors
Why These Connect
The narrative assertion
"The realization that the TARDIS is their only hope for treatment leads the Doctor to confess he lied about the fluid link being broken."
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.