---
title: Extropy Engine XP Formula Demo
emoji: ♻️
colorFrom: green
colorTo: gray
sdk: gradio
sdk_version: 4.44.1
app_file: app.py
pinned: false
license: mit
---

# Extropy Engine, XP formula demo

The unit of value is entropy reduction. This is not a metaphor.

This Space runs the canonical Extropy XP formula, faithfully ported from the
TypeScript source of record in
[`packages/xp-formula`](https://github.com/00ranman/extropy-engine/blob/main/packages/xp-formula/src/index.ts):

    XP = R x F x dS x (w . E) x log(1 / Ts)

Move the sliders to score a contribution. Set dS to 0 or push Ts out of range
to watch the mint preconditions fail closed. Reputation never enters this
formula, which is the entire design intent.

## Links

- Source: [github.com/00ranman/extropy-engine](https://github.com/00ranman/extropy-engine)
- Paper: [An Emergence-First Grand Unified Theory](https://www.academia.edu/167360291)
- Discussion: [open thread](https://www.academia.edu/s/b1ff6dbe50)

## License

MIT, Copyright (c) 2026 Randall Gossett.