Repetition Loop

A MIT blog post on "weight-space programming" drew wide attention: in the experiment, GPT-6 Astra wrote Python scripts to diagnose and modify just 0.016% of the weights in a 0.8B small model, fixing a repetition loop and roughly 6x-ing its math score. Researchers later noted the model did not directly "compute" weights but essentially wrote debugging code, though the post frames the work around recursive self-improvement (RSI).