Poor Old Lady Dithers; she's a sweet old thing to be sure, but prone to bouts of senility. She's recently taken to warbling on about "computer simulations" and "fail-safe" operations. The neighbors sure hope they won't have to commit the old dear.
Like the other inhabitants of Vault 112, Old Lady Dithers is trapped in the Tranquility Lane simulation and subject to Stanislaus Braun's whims. The terminal attached to her pod chair in Vault 112 notes that several readouts show anomalous readings, likely either a cause or symptom of her awareness.