Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The Doctor's initial suspicion of Matrix tampering (raising the possibility of duplicating the Key of Rassilon) is directly vindicated later when the Matrix's flaws and the Valeyard's manipulations—including the bureaucratic 'Fantasy Factory'—are exposed. The earlier theoretical defense becomes the foundation for the later practical revelation of corruption."
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.