Skip to Content
📄 ESSRT — Read the paper

Support

Thank you for your interest in this framework. This page collects the project’s background, its resources, the ways to support it, the licensing terms, and how to get in touch.


About the Project

This model took over four years to develop while balancing work and family. What started as a 3D simulation project grew into an integrated framework: a Newtonian N-body engine carrying every planet’s orbit from one cited J2000 state, and Earth’s long periods read as beats against one derived clock — the 25,771.4-year lunisolar precession period — which lengthens through geological time.

The result is an Interactive 3D Simulation, a preprint , investigation scripts, and comprehensive documentation. The framework reproduces the published observations for Earth’s precession, eccentricity, axial tilt, inclination and day/year lengths, and for the planets’ orbits. Where it departs from current consensus it does so deliberately and says so — those departures are catalogued with the tests that would settle them (Supporting Evidence).

The model looks simple — but only became simple after many attempts.

Iterative creative process Original illustration by Milani Creative 

Resources

All work is openly available for non-commercial use.

ResourceDescription
3D Simulation Interactive 3D Solar System Simulation
3D Source Code GitHub repository for the simulation
Investigation Scripts Python scripts to reproduce the model’s analyses — climate-sensitivity decompositions, resonance and libration tests, deep-time cross-checks, and the eclipse datasets behind the ΔT work. Some scripts belong to retired lines of investigation and are flagged as such in the directory’s README.
Orbital CalculatorCompute all model values for any year in your browser

Ways to Support

ActionDescription
ShareTell others about the model on social media
FeedbackSend questions or suggestions to dennis@holisticuniverse.com
CoffeeBuy me a coffee 
CollaborateOpen to working with researchers and educators — actively looking for a publisher and open to negotiations

Licensing

Software

The model, the simulation and all supporting code are released under AGPL-3.0  — free to use, study, modify and redistribute, on the condition that derivative versions stay open and attributed, including when run as a network service.

Separate commercial terms can be arranged for the model: the ESSRT formulas, the fitted anchor and its correction bases, the deep-time engine, the fitted coefficients, and services built over them. All of that is original work.

They cannot cover two parts that are not ours to relicense — the 3D simulator’s scene-graph construction, which uses an idiom inherited from The TYCHOSIUM  under the GPL, and the ELP lunar evaluators, which derive from ytliu0/ElpMpp02  under GPL-3.0. Those remain AGPL-3.0 for everyone.

The distinction is between the model and one particular way of rendering it. The precession hierarchy the model computes is original; what was inherited is the plumbing that instantiates it in Three.js. Full reasoning is in NOTICE .

Images

Non-commercial use: You may share original images on non-commercial websites or social media with a link back to https://www.holisticuniverse.com .

Image guidelines:

  • Do not alter images (no logos, filters, crops, or added text)
  • Keep the watermark intact

Commercial use: Images must be licensed. Contact dennis@holisticuniverse.com for licensing inquiries.


Contact

Email: dennis@holisticuniverse.com


All original content Copyright © 2022-2026 D. van Sonsbeek. All rights reserved unless explicitly stated otherwise. The model source code is licensed under AGPL-3.0 ; commercial enquiries are welcome — see Licensing above for what separate terms can cover.

Last updated on: