Chapter 27
Chapter 27 — "This Is John Galt Speaking"
TL;DR: Mr. Thompson's national radio address from a New York studio is preempted in the moment of going to air by an unknown engineer commandeering every transmitter on Earth, and for the next three hours the world hears one calm voice — "This is John Galt speaking" — explain who he is, why the producers have struck, and what reason and self-interest are.

Summary: Mr. Thompson, the Head of State, is to deliver a national broadcast at eight o'clock to reassure a starving country that the regime has matters in hand. At the appointed minute, in the broadcast studio, the engineers find the carrier wave has been hijacked. Around the world, every functioning transmitter — radio, telephone amplifier, broadcast tower — picks up a single rogue signal whose source the regime cannot find. A calm man's voice begins: "Ladies and gentlemen, Mr. Thompson will not speak to you tonight. His time is up. I have taken it over. You were to hear a report on the world crisis. That is what you are going to hear. — For twelve years, you have been asking 'Who is John Galt?' This is John Galt speaking." Across three hours and across a hundred thousand miles of wire he tells the world the strikers' answer in full: he names the strike, he explains its reasons, he draws the philosophy of reason, productive work, and rational self-interest line by line. Mr. Thompson and his council listen white-faced in the studio. Across the country a workman at a quarry, a housewife in Brooklyn, a doctor in Cleveland, an old man in a Wyoming diner each in turn rises out of his chair to listen. The speech ends — "I swear by my life and my love of it that I will never live for the sake of another man, nor ask another man to live for mine."
Key scenes:
- A broadcast studio in New York at five minutes to the hour — Thompson at the microphone, engineers at their boards, red-second hand sweeping
- The carrier wave going dead at the appointed minute; engineers staring at their VU meters
- The first sentence — "Ladies and gentlemen, Mr. Thompson will not speak to you tonight"
- A montage of listeners across America rising slowly out of chairs to face their radios — the quarry worker, the housewife, the doctor, the diner customer, the soldier
- Mr. Thompson, Mouch, Ferris, James Taggart, Stadler in the studio control room watching it pour out, helpless
- The closing oath — silence — then the carrier wave going dead
Characters present: John Galt (voice only), Mr. Thompson, Wesley Mouch, Dr. Floyd Ferris, James Taggart, Dr. Robert Stadler, broadcast engineers, an entire montage of listeners
Locations / settings:
- A New York radio broadcast studio — gray padded walls, microphones, a control booth wall of dials
- A montage of America at eight in the evening — quarry, kitchen, hospital, diner, barracks
- Galt's small Manhattan tenement room — a clean workbench with a small transmitter, a single lamp
Visual motifs: a microphone in an empty studio with a sweeping red second hand; a radio loudspeaker on a kitchen shelf glowing yellow with dial light; a montage of separate Americans pivoting toward radios; a small clean transmitter on a workbench in a tenement window facing the city
Emotional tone: revelatory, stunning, sustained, prophetic
Confidence: high — the Galt radio address is the philosophical centerpiece of the entire novel; every reference covers it.