The latest articles on DEV Community by pongtse822-rgb (@pongtse822rgb). https://dev.to/pongtse822rgb https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3761474%2Ff85de1f0-465c-4fba-9191-302ff08551ff.png https://dev.to/pongtse822rgb en pongtse822-rgb Mon, 09 Feb 2026 08:46:37 +0000 https://dev.to/pongtse822rgb/i-built-a-black-hole-universe-simulator-open-source-seeking-collaboratorspython-opensource-c96 https://dev.to/pongtse822rgb/i-built-a-black-hole-universe-simulator-open-source-seeking-collaboratorspython-opensource-c96 <h2> TL;DR </h2> <p>I built a 2D N-body physics simulator to test if a universe could exist <br> inside a black hole. It works, but needs GPU power. MIT-licensed, seeking <br> collaborators.</p> <p>🔗 <a href="https://github.com/pongtse822-rgb/V6-Black-Hole-Universe" rel="noopener noreferrer">GitHub</a> </p> <h2> The Idea </h2> <p>What if our observable universe is actually <em>inside</em> a black hole's event <br> horizon? It sounds crazy, but some physicists have seriously proposed this <br> ("Black Hole Cosmology").</p> <p>I decided to simulate it.</p> <h2> What It Does </h2> <ul> <li>Simulates N-body gravity within a spherical "membrane" (event horizon)</li> <li>Models tidal forces near the boundary</li> <li>Tracks atmospheric evolution on planets (O₂/N₂ generation)</li> <li>Uses mass injection as a dark energy analog</li> </ul> <h2> Results So Far </h2> <p>After 2000 epochs with 1000 bodies:</p> <ul> <li> <strong>2.7% became "Gaia worlds"</strong> (breathable atmospheres)</li> <li>System shows Hubble-like expansion</li> <li>Mass conservation: 99.94% ✓</li> </ul> <h2> The Problem </h2> <p>I've hit my resource limits. The code is pure Python with O(N²) gravity <br> calculations. To go further needs:</p> <ul> <li>GPU acceleration</li> <li>3D implementation </li> <li>Access to HPC cluster</li> </ul> <h2> Why I'm Sharing This </h2> <p>The code is <strong>MIT-licensed</strong>. I'm not looking for authorship or citations - <br> just hoping someone with better resources might find this useful as a <br> starting point.</p> <p>If you have:</p> <ul> <li>Access to GPU/HPC resources</li> <li>Interest in computational astrophysics</li> <li>Ideas for extending this</li> </ul> <p>Feel free to fork and run with it! I'm happy to answer questions about the <br> implementation.</p> <h2> Tech Stack </h2> <ul> <li>Pure Python (no NumPy/SciPy)</li> <li>~500 lines of physics code</li> <li>Runs on Google Colab (free tier)</li> <li>Well-documented with verification suite</li> </ul> <h2> Links </h2> <ul> <li>📂 <a href="https://github.com/pongtse822-rgb/V6-Black-Hole-Universe" rel="noopener noreferrer">GitHub Repo</a> </li> </ul> <h2> Questions I'd Love Feedback On </h2> <ol> <li>Are the physics assumptions reasonable?</li> <li>How would you optimize the gravity calculation?</li> <li>Is this worth pursuing in 3D?</li> </ol> <p>Thanks for reading! 🌌</p> <p><em>Cross-posted to seek collaborators. Not spam, genuinely looking for <br> continuation of this research.</em></p> opensource python science showdev