I'm guessing what works but analyze: how should I systematically test? Map the testing framework: variable isolation, measurement, iteration. Show me the testing methodology: test one element at a time, measure specific metrics, optimize accordingly. Calculate: if I tested scientifically instead of guessing, how much faster would I optimize? Give me the testing protocol: these variables to test first, this measurement approach. Include: how to design content experiments, what to test first, and why guessing is slower than testing.