The live simulation.

Kronos does not ask you to take the numbers on faith. The physics runs in your browser — the same deposited code, live — so you can move the sliders and watch the design point re-derive.

What runs

The breeder engine, live in WebAssembly Python

Burner

Precomputed from the deposited solver — read live

Where

kronosfusionenergy.com/Physics_Validation_Simulation

Privacy

Runs entirely in your browser — nothing sent to a server

The live simulation is a companion to the two papers and the two deposits. It loads the breeder's evaluator into a WebAssembly Python runtime and re-derives the frozen point (Q 3.424) before it unlocks the controls — so what you interact with is the real evaluator, not a mock-up.

• Breeder — live. Move ion temperature, density, field, aspect ratio and breeding ratio; watch Q, fusion power, plasma current and tritium rate update from the deposited power balance.
• Burner — the closure map. The mirror engine needs SciPy, too heavy for the browser, so its solver output is precomputed across the closing window from the deposited source and read live. Slide the helium-3 fraction and watch Q_E and the neutron fraction move along the cleanliness trajectory.
• Reactivity. The Bosch–Hale curves for D–T, D–D and D–³He, computed live — the reason the two machines burn different fuels.
• Environment. Waste class, public dose, and how Kronos compares to other fuels and machines.

Every panel carries its own honesty rails: the breeder's availability and triangularity caveats, the burner's plug-density requirement. The point of running it live is that you can find the gaps yourself.