THE RECORD EXPERIMENT
Learn something new.
Keep what still works.
Four records. A moving needle. Watch a machine learn where to read—and see what happens when we stop it from writing.
The protected bank
Waiting for the first encounterEach disc is a 2 × 2 matrix. The rings visualize its four weights; rotation is an illustration, not the learning algorithm. Context centers and records freeze together.
Does it remember?
Lower error is better| Learner | Online MSE | Current rules MSE | Old-rule change |
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Line chart: original-rule error over contexts encountered so far. New contexts can change the average. Dashed grid labels show its current scale. Old-rule change compares each context with its own first-block score; zero can also mean it never learned.
The latest move
Predict → score → learnA continuous cue tells the learner about its surroundings.
WHAT THIS RUN CAN TELL YOU
Start with the easy world. Then change its rules.
The adaptive bank is the important control: it has exactly the same routing and records, with writing left enabled.