Hacker News with Generative AI: Simulation

Show HN: Olelo Foil - NACA Airfoil Sim (olelohonua.com)
What are people doing? Live-ish estimates based on global population dynamics (maxcomperatore.com)
Live-ish estimates based on global population dynamics & simulated day/night cycles
Real-Time Grass Simulation in the Browser – Over 1M Blades at 60 FPS (techredux.co)
FLOWINGGRASS FIELDS
The Universe Is 'Suspiciously' Like a Computer Simulation, Physicist Says (sciencealert.com)
We have long taken it for granted that gravity is one of the basic forces of nature – one of the invisible threads that keeps the universe stitched together. But suppose that this is not true. Suppose the law of gravity is simply an echo of something more fundamental: a byproduct of the universe operating under a computer-like code.
Show HN: Python Simulator of David Deutsch’s “Constructor Theory of Time” (github.com/gvelesandro)
A Python implementation of David Deutsch’s Constructor Theory framework, exposing key concepts—from simple Tasks and branching substrates to quantum-gravity and electromagnetism—entirely in code. Includes a “universal constructor” that can bootstrap itself from a list of Tasks, demonstrating self-replication and the power of Constructor Theory.
A Simulation in C++ of Joseph Weizenbaum's 1966 Eliza (github.com/anthay)
I’ve made in C++ what I think is an accurate simulation of the original ELIZA.
Brandon's Semiconductor Simulator (brandonli.net)
System lets robots identify an object's properties through handling (news.mit.edu)
With a novel simulation method, robots can guess the weight, softness, and other physical properties of an object just by picking it up.
FieldStation42 – Cable and broadcast TV simulator (github.com/shane-mason)
Cable and broadcast TV simulator intended to provide an authentic experience of watching OTA television with the following goals:
Gravity is a clue that we live in a simulation (bgr.com)
We all know gravity as the invisible force that keeps us grounded. But what if it’s not a force at all? What if it’s a function? One physicist believes gravity might actually be one of the strongest clues that we live in a simulation.
Visual Transistor-level Simulation of the 6502 CPU (visual6502.org)
Welcome to Visual6502.org! Here we'll slowly but surely present our small team's effort to preserve, study, and document historic computers.  We aim to present our work in a visual, intuitive manner for education and inspiration, and to serve as a solid verifiable reference for classic computer systems.  See our slides for an introduction and some fun images.
World Emulation via Neural Network (madebyoll.in)
I turned a forest trail near my apartment into a playable neural world.
Sail-Trim Simulator (atterwind.info)
Learn and get a better mental model about wind-gradient, apparent-wind, sail-twist at changing speeds and course
Pydrofoil: Accelerating Sail-based instruction set simulators (arxiv.org)
We present Pydrofoil, a multi-stage compiler that generates instruction set simulators (ISSs) from processor instruction set architectures (ISAs) expressed in the high-level, verification-oriented ISA specification language Sail.
MooseAgent: A LLM Based Multi-Agent Framework for Automating Moose Simulation (arxiv.org)
This paper proposes an automated solution framework, MooseAgent, for the multi-physics simulation framework MOOSE, which combines large-scale pre-trained language models (LLMs) with a multi-agent system.
The thing about the Kobayashi Maru (medium.com)
“The thing about the Kobayashi Maru is,” says Jim, “you have to remember it’s a simulation.”
Sales Compensation Simulator (exec.com)
Experiment with different sales compensation scenarios to see how they impact earnings.
EmptyEpsilon open source spaceship bridge simulator (daid.github.io)
EmptyEpsilon is a spaceship bridge simulator game. It's fully open source, so it can be modified in any way people wish.
Newton, an Open-Source Physics Engine for Robotics Simulation (nvidia.com)
Physical AI models enable robots to autonomously perceive, interpret, reason, and interact with the real world. Accelerated computing and simulations are key to developing the next generation of robotics.
RISC-V Processor Design – Lec 6 – EXU and Co-Simulation (ycombinator.com)
In this lecture, we stitch together a custom Instruction Set Simulator I created with the RISC-V CPU (now with the execution stage) and see the first instructions flowing in the pipeline.
Show HN: Tesseract Core – Autodiff-native, self-documenting software components (github.com/pasteurlabs)
Autodiff-native, self-documenting software components for Simulation Intelligence. 📦
Online Embedded Rust Simulator (wokwi.com)
Use Wokwi to simulate embedded Rust projects and test your hardware projects.
Show HN: I Built a Telegraph Simulator (13ug1mb.com)
For military staff across Europe, wargaming is all the rage (france24.com)
Once dismissed as frivolous, wargames have emerged as crucial strategic tools amid rising global tensions. A recent simulation at Paris's École Militaire, where 500 participants played out high-intensity conflict scenarios, reflects a growing international trend toward gamified military preparedness.
OpenCFS (Coupled Field Simulation) (opencfs.org)
openCFS (Coupled Field Simulation) is a finite element-based multi-physics modelling and simulation tool.
CEO Simulator: Startup Edition (vercel.app)
Welcome! Watch the video below to learn how to play. For detailed rules and additional information, simply click the menu button!
Half Moon Bay Gondola System – Live Simulation (amazonaws.com)
Inspired by: Simon Wilison's blog, and The Real Python Podcast Episode 236, which lead me to find this in a google search: this article.
RetroFab: Playable 3D simulations of vintage electronic games (itch.io)
RetroFab is a new online collection of vintage electronic game simulations that can be played in the browser.
Show HN: App that simulates a software engineer's daily job (vercel.app)
Procedural Hydrology: Dynamic lake and river simulation (2020) (nickmcd.me)
In Art, Engineering, Game, Procedural Generation