Epsilon Coordinates

Abstract numerical sequence provided by the Doctor to Liz Shaw, serving as the trigger for exposing Stahlman's sabotage when input into the workshop computer.

1 appearances

Purpose

Input into the computer to diagnose and reveal sabotage in the micro-circuit

Significance

Serves as the Doctor's concealed clue that manipulates Liz into confronting Stahlman's lies, heightening tension through orchestrated revelation and testing her trust in him over the professor.

Appearances in the Narrative

When this object appears and how it's used

1 moments

S7E20 · Inferno Part 2

Doctor manipulates Liz into uncovering truth

The epsilon coordinates are the key to exposing Stahlman’s sabotage. The Doctor frames their input as a routine task, but they are designed to trigger a reaction in the system that will reveal the tampering. Liz’s input of these coordinates is the catalyst that will force the truth into the open, making her an unwitting but essential part of the Doctor’s plan.

Before: Stored in the Doctor’s possession, awaiting input into the computer system.

After: Entered into the computer by Liz, now poised to expose Stahlman’s interference with the micro-circuit.

View full event