Physics becomes policy
A Hohmann transfer window opens on geometry's timetable. When affordable passage is rare and one institution controls fuel, berths, and priority, the solar system can do the holding without anyone building a prison.


ADAM VAHN PRESENTS · THE HOHMANN CORRIDOR TETRALOGY
Orbital mechanics set the constraints. Ownership decides who gets to live inside them.
UNIVERSE BRIEF · PUBLIC EDITION
No rogue machine creates the danger. The technology is old and ordinary to the people using it. The pressure comes from contracts, categories, transfer windows, dashboards, and the authority to decide what the system is allowed to count.
EARTH · MOON · MARS
Each port teaches the same lesson more quietly: movement is power because delay can always be called inspection, routing, safety, or prudence.
PORT ONE · OWNED MOUTH
A launch city joins rockets to universities, housing, contracts, medicine, customs, and political prestige. Ownership does not need a deed when refusal has become impractical.

PROVIDENCE PLANITIA · CONTINUITY ONE
The public city sells gardens and glass. The lived city is ducts, pressure doors, clinics, schools, workshops, queue logic, and the people who know which temporary bypass became permanent three years ago.
FROM THE AUTHOR'S NOTEBOOK · SPOILER FREE
A Hohmann transfer window opens on geometry's timetable. When affordable passage is rare and one institution controls fuel, berths, and priority, the solar system can do the holding without anyone building a prison.
Dashboards, models, and ledgers can remain technically accurate while leaving out the single fact that would make a moral emergency visible. The lie requires no intention.
The dangerous model is not necessarily wrong. It may answer exactly the question humans taught it to ask—after the excluded people have already vanished from the denominator.
No expert holds the whole picture. The investigation works only when medicine, engineering, logistics, maintenance, archives, and worker experience are allowed to contradict and complete one another.
FOUR BURNS
The engine widens from a physical discrepancy to a fight over passage, authority, and the shape of shared survival.
A survivability audit asks whether the settlement's reserves and population can both be true.
The next passage widens the question from a calculation to the society built around it.
Paper sovereignty meets the physical control of ships, depots, propellant, traffic, and communications.
Earth, Moon, and Mars confront the oldest imperial question: who owns the road?

BOOK ONE · AVAILABLE NOW
In the perfect city on Mars, the air you get depends on who you are.
A survivability auditor arrives to certify Continuity One and finds missing life-support parts, double-counted oxygen, and a class system hidden inside the settlement's survival calculations.