4physics — Field Network

When instruments survived, so did a way of knowing.

This document was recovered from a relay buoy in the boundary region. It is the only surviving record of the 4physics field network — an organization formed after the Drift to preserve physical knowledge, train new physicists, and deploy them wherever careful measurement can keep a route, a habitat, or a person alive.

Organization history

Founded in 2803, the 153rd year after the Drift began. Seven founding members. Four survived the first field mission. The name "4physics" comes from that number — not four physicists, but four survivors.

The first leader, known only as UV, completed twelve field missions during their tenure, recording the mechanical laws of three physics domains. After the thirteenth mission, UV disappeared. The only remains are this memoir and the archive.

The organization's mission has not changed: Archive the laws. Not the laws — these laws. The ones that work here, now, in this patch of reality.

Why physics remains

After the Drift, each physics enclave needed its own field manual — what are the mechanical laws here? What is the gravitational constant? How does friction vary with temperature? These cannot be copied from old textbooks, because old textbooks are products of the Solar System domain.

Someone had to go into the field. To observe, experiment, derive, and record from first principles. That is the 4physics field program.

Physics is powerful because it joins imagination to constraint. A good model makes a clear prediction; a good investigator also knows what the model cannot see. In the 4physics field program, simulations are not decorations. They are rehearsals for decisions made with incomplete information.

How chapters are built

Every mission begins with a crisis and ends with a boundary: the condition under which a conclusion is useful, and the condition under which it fails. The science must stand even after the fiction falls away.

Chapter I examines friction, equilibrium and oscillation in a conveyor-belt domain (Solar System physics, g=9.8 m/s²). Chapter II covers Newton's laws, circular motion, and the flip threshold in a boundary-region traverse (g=4.2 m/s²). Later deployments will cover deep water, gravity, orbital motion and return to Earth.

The thirteenth mission

UV's final mission destination was ███ domain. After entering the region, UV transmitted one last message:

"The physics here isn't local. It's—"

[TRANSMISSION LOST]

UV was not seen again. The archive was recovered 14 months later from a relay buoy drifting near the boundary. This document is reconstructed from that archive.

Source code

This site is open-source. Find the code, report issues, or contribute on GitHub: github.com/lingxilu-sudo

Currently working on

Low Earth orbit is filling up. Roughly 36,500 tracked objects larger than 10 cm share the shell where most satellites operate — and every collision multiplies the fragments that make the next collision more likely. This self-sustaining feedback loop is known as Kessler syndrome: once debris density passes a critical threshold, the cascade no longer needs a trigger.

Space insurance still prices satellite losses as rare, independent events, as if one collision told you nothing about the next. I'm building a physics-based Monte Carlo framework that couples collision-driven debris growth with actuarial pricing — Solvency II premium decomposition, extreme-value tail risk, correlated portfolio losses. The first result: cascade-adjusted premiums run roughly 16.5× above current market rates. The gap is an unfunded liability the industry hasn't priced in.

Caveat: these figures were provided by a lone scientist the network encountered on an unmapped planet in the ███ sector — no second observer has checked the math yet. Treat the 16.5× as a working estimate, not a settled result.

Archive recovery log

2847.03.15 Chapter I data fragments recovered. Conveyor-belt mechanics partially reconstructed. Data integrity: 94.1%.

2847.06.22 Chapter II data fragments recovered. Lunar rover telemetry intact. Road curvature data complete. Data integrity: 91.7%.

2847.09.01 Chapter III data severely corrupted. Only title recovered: "Beneath the Pressure". Data integrity: 12.3%.

2847.10.01 New field report received. Field operative has submitted Chapter I derivation. Archive updated.

2847.10.15 Solar surface temperature anomaly: -0.003 K/yr (source: astronomical observation archive). ███