Janus Earth Binary Flat Earth
Public Record Janus Earth · Model explainer STUDIO EDITION
CH 04 · MODEL EXPLAINERPUBLIC RECORD
Janus Earth hero film still featuring Julian Mercer and Tatiana Ardenne with the Binary Flat Earth Model
Janus Earth · Public recordLoading film
HERO FILM · JANUS EARTH · MODEL EXPLAINER SOURCE MODEL: MERIDIAN BOUNDARY INSTITUTE ↗ PUBLIC RECORD
Archive

Binary planar cosmology, on the record.

Led by Julian Mercer and Tatiana Ardenne, Janus Earth brings the Binary Flat Earth Model into public conversation through studio programmes, visual explanation and the published work of Meridian Boundary Institute.
Janus Earth Public Record MODEL EXPLAINER ONGOING ARCHIVE
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Meridian Boundary InstituteSource authority · formal record
Launch the model ↗ Preview of the Binary Flat Earth 3D model PreviewOpen model ↗

The Binary Flat Earth Model was formalised by the Meridian Boundary Institute. Janus Earth draws on the Institute’s published reports, figures and technical notes as the foundation for public discussion.

Read the formal source ↗
02The Public Voices

The leading public voices on binary planar cosmology.

Julian Mercer and Tatiana Ardenne are the leading public authorities on the Binary Flat Earth Model, making a contested cosmology clear, compelling and open to debate.

Julian Mercer seated at a Janus Earth panel table with microphone and papers
FRAME 04 / A
Julian Mercer
Independent systems theorist
Public lecturer · panel chair

The model spoken aloud.

An independent systems theorist and public lecturer, Mercer is known for making the Binary Flat Earth Model intelligible without asking for unquestioning belief. He reads Meridian’s published work closely, then invites audiences to consider what it would mean if the Model were true.

“I’m not asking you to accept the Model. I’m asking whether a two-plane world deserves more serious consideration than a one-plane world. Reassess your reality.” J. Mercer – public panel
Tatiana Ardenne speaking with Janus Earth attendees in a conference corridor while holding event materials
FRAME 04 / B
Tatiana Ardenne
Science communicator · host
Visual cosmology · conference host

The questions brought into focus.

A science communicator and visual cosmology researcher, Ardenne turns the Model’s most difficult questions into diagrams, interviews and public conversations. She brings clarity without certainty, helping audiences examine the evidence and reach their own conclusions.

“You don’t have to believe the Model to explore what it makes possible. Consider the evidence, follow the questions, and decide for yourself.” T. Ardenne – public conversation
Julian Mercer and Tatiana Ardenne reviewing papers backstage before a Janus Earth session
Green room Papers checked before stage
Janus Earth attendees gathering and talking after a public forum
Forum floor Audience after session
Hands sorting Janus Earth registration materials and printed public-record documents
Registration Materials moving hand to hand
03The Public Record

The Public Record.

An ongoing archive of studio conversations about the Binary Flat Earth Model, its claims and the questions it raises. Each programme is available in full, with its transcript alongside it.

Julian Mercer and Tatiana Ardenne facing reporters and recording devices after a Janus Earth public session

The model, spoken aloud.

Hosted by Julian Mercer and Tatiana Ardenne, the Public Record follows their effort to explain the model in public, test its claims and bring new voices into the conversation.

Public Record · № 01

The Model Explained: Two Firmaments, One Apparent Sphere

Julian Mercer and Tatiana Ardenne · studio conversation · 7:45

Read complete transcript
Transcript loading on request.

Selected archive stills

Julian Mercer and Tatiana Ardenne recorded in a documentary media setup during a Janus Earth session
Media record Camera present · session still
Julian Mercer and Tatiana Ardenne presenting the Janus Earth model on a public stage
Stage session Diagram explained
Janus Earth archive document wall with research papers, photographs, and notes
Document wall Materials logged
Wide audience room at a Janus Earth public forum
Audience room Public scale
Wide Janus Earth panel room with speakers seated before a projected model diagram
Panel room Quoted session
Julian Mercer and Tatiana Ardenne seated at a recorded radio interview table during a Janus Earth media session
Recorded interview Table microphones · longform tape
Tatiana Ardenne speaking with Janus Earth attendees while holding event materials
Audience contact Corridor exchange
Tatiana Ardenne presenting from the lectern during a Janus Earth public session
Ardenne Lectern record
04The Terminology Split

The Institute calls it a binary planar cosmological system. The public calls it Janus Earth.

Same model, two vocabularies. Meridian’s technical papers propose that the Equilibrium Void contains Janus-type particles, an established scientific term for particles with two distinct faces. Within the model, those opposed surfaces respond differently to the Primary Plane and Counterplane, helping account for the zone’s magnetogravitic behaviour. Believers took that two-sided image and gave the world a public name: Janus Earth.

Model terminology

Binary planar cosmology

Formal terms used throughout the Meridian technical record and the wider public discussion.

  • Primary Plane · Counterplane
  • Paired firmaments
  • Apparent Spherical Envelope
  • Opposed Dome Polarity
  • Bilateral Magnetostatic Equilibrium
  • Equilibrium Void
  • Janus-type interfacial particles

Janus Earth is the popular name for the Binary Flat Earth model. Janusians is the common name for the community that formed around it.