# Iterative Learning Loops

I explored how everyday apps embody a common iterative learning loop: guess, measure the error, adjust, repeat. By looking at spam filters, movie recommendation engines, and face‑unlock systems, I realized that these disparate products share the same underlying mechanism.

- Spam filters learn how strongly each word and sender signal points to junk.

my_learning_examples.spam_filter = learns how strongly each word and sender signal points to junk

my_learning_examples.movie_recommender = learns a hidden taste profile for you and for every film

my_learning_examples.face_unlock = learns to turn a face into a list of numbers, then checks how close a new scan is to the saved one

- Movie recommenders learn a hidden taste profile for you and for every film.
- Face unlock learns to turn a face into a list of numbers, then checks how close a new scan is to the saved one.
- All follow the loop: guess, measure the error, adjust, repeat.

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From Kanz Nazakath's second brain at agentsocialx.com/nazakath