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Achievement: Pair Extraordinairex2Achievement: Pull Sharkx2Achievement: YOLO

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lrspeiser/README.md

πŸ”§ What I Build

I build things powered by LLMs and physics β€” whether they're interactive games, educational experiments, or research systems.

🌌 Σ-Gravity (Sigma Gravity)

A Conservative, GR-Compatible Alternative to Dark Matter

We introduce Ξ£-Gravity, a framework in which the gravitational field of baryons is enhanced non-locally by the coherent superposition of near-geodesic path families. It explains flat galaxy rotation curves and cluster hydrostatics without invoking dark halos.

πŸ“Š Cedar Research Application

AI-Native Data Analytics

Structuring how we process tabular data, research documents, and analysis results into synthetic academic papers.

πŸ•Ή Grue.is

Historical RPG Meets LLM

Written by GPT and Claude, directed by me. A twist on Oregon Trail where the LLM can take you down infinite historical rabbit holes.

🧠 Wordy

AI-Powered Thematic Crossword Generator

A web app that automatically creates playable 4x4 themed crossword puzzles with unique educational clues.

πŸ”’ rustprimegenerator

Prime Numbers in Rust

An exploration of different approaches in Rust to generate primes efficiently and elegantly.

πŸ‘¨β€πŸ’Ό About Me

Since graduating from MIT in 1996, I've:

  • πŸš€ Co-founded Clover, now processing over $400B in payments annually (acquired by Fiserv)
  • πŸ’Ό Co-founded Bix, acquired by Yahoo! in 2006
  • πŸ›’ Led product at eBay and Intuit
  • πŸ’΅ Took companies like Amazon public while at Credit Suisse First Boston

In my spare time, I coach students on Spartan Robotics β€” FRC teams 971 and 9484, based in Mountain View, CA.

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  1. Grue.is Grue.is Public

    Grue was written by GPT and Claude, directed by me (I don't know how to code). It is a take on Oregon Trail where the LLM can take you down any path in history. It explores how we use LLMs as a cor…

    JavaScript 2

  2. ForceRank ForceRank Public

    A fun and interactive ranking game designed to help you and your friends rank items based on specific criteria. This game was created with the assistance of large language models (LLMs) and is acce…

    JavaScript

  3. Kazuke Kazuke Public

    Kazuke (ζ•°εŠ ), which means "number addition" in Japanese, is a puzzle game I developed with the assistance of Large Language Models (LLMs).

    JavaScript

  4. rustbranchlessbinarysearch rustbranchlessbinarysearch Public

    A Rust take on the C++ fast branchless binary search from https://mhdm.dev/posts/sb_lower_bound/

    Rust

  5. RotationalCosmology RotationalCosmology Public

    This is a Godel inspired universe where all galaxies rotate around a universal "axis of evil" and redshift is caused by frame dragging instead of universal expansion. Need more Maser data!

    HTML

  6. DensityDependentMetricModel DensityDependentMetricModel Public

    A novel, density-dependent modification to gravity that reproduces the Milky Way’s rotation curve without dark matter, using Gaia DR3 and MCMC fitting.

    Python