Shape the feed

Recommendation Algorithm Simulator

React to a fictional feed and watch a simplified recommendation model update what it thinks you want. Every scoring rule is visible and the session stays in your browser.

This is a teaching model: real platforms use far more signals and different objectives. This simulator demonstrates feedback loops; it does not reproduce any company’s algorithm.

The first feed is broad because the model has not observed any behavior yet.

Recommendation Algorithm Simulator

Your feed changed because your behavior became data.