Foreshadowing
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor encounters time split doubles
S9E1
·
Day of the Daleks Part 1
To
Doctor lures Jo to haunted house trap
S9E1
·
Day of the Daleks Part 1
Why These Connect
The narrative assertion
"The Doctor's experience of temporal echoes in the UNIT lab (self-duplicates appearing) foreshadows his later discovery and use of the time machine, linking the initial temporal anomalies to the core time-travel plot."
About Foreshadowing Connections
A hints at B. The first event plants narrative seeds that pay off later. These connections reward attentive viewers with a sense of inevitability on rewatch.