USDR Crosscheck · desktop

Early-warning indicator test — does 2D Ising magnetisation near T_c show critical slowing down (rising variance and AR1) with susceptibility scaling exponent γ within 25% of the 2D Ising value 7/4?

Protocol p-b-ising-social-dynamics-ewi · bridge b-ising-social-dynamics

Metropolis Monte Carlo on a 2D square Ising lattice at temperatures T ∈ {2.65, 2.55, 2.45, 2.38, 2.33, 2.30} in the scaling regime above T_c ≈ 2.269 shows monotonically increasing magnetisation variance, AR1, and integrated autocorrelation time as T → T_c, and a log-log fit of Var(M) vs |T − T_c| yields γ within 25% of the 2D Ising susceptibility exponent 7/4.

Try the in-browser runner below for a live demo, or clone this folder for the canonical Python repro (source of truth for verification).

Run Crosscheck in your browser

One-click demo — same algorithm as the Python repro. Results stream live; clone the repo for full-precision verification.


  

  
  


  
Run locally

  
git clone https://github.com/KR8ZYSHO3/Universal-Science-Discovery.git
cd Universal-Science-Discovery/repro/p-b-ising-social-dynamics-ewi
pip install -r requirements.txt
python ising_critical_slowing.py

  
Estimated runtime: 3–8 minutes on a modern laptop (configurable sweeps). Exit code 0 = prediction within tolerance;
  1 = falsified at stated precision.

  

    README
    Source on GitHub
    Protocol YAML
    Bridge explainer
    USDR dashboard