A-B Testing Is Not a Cure, It's a Diagnostic Tool

In the end, you're building for your users and you can't really hear from them in aggregate without tools like A-B testing. The data that you get at the end of a test is really the voice of your users. And it's still one of the best tools that we have. So make sure that you remember to make your hypotheses and to do that cognition and that upfront work. Because that's what makes our job so much fun. That's what makesour job so valuable. It is not easy and it is not cheap but it's definitely worth it in the end. Thanks.