This is way cool, though I can't help but think that the results might differ from actual A/B testing because the testing context is explicit. Have you done comparisons to backend A/B testing to see how well the two align?<p>It would seem that traditional A/B testing allows you to see what actually converts, while this framework would be biased towards user preference--which doesn't necessarily imply conversion. For example, I think Amazon's site is ugly and busy, and given the choice between that layout and a cleaner one, I'd probably choose the cleaner. That said, there's no way they haven't tested the hell out of the home page and discovered that a busy page, though uglier, converts better.