Try this learning loop
State a prediction before changing the controls. Identify which assumption changes the result, reset and test a second case. These deliberately small models explain one mechanism at a time.
Interactive concept model
Cache economics calculator
Change hit rate, origin cost and fixed cache cost.
Predict it. Test it. Change one thing.
Local educational model. No account or cloud charges. Nothing is deployed to AWS.
Break-even hit rate: 20.0%. User-supplied illustrative costs; excludes bandwidth, cache request charges, staleness and invalidation.
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