I really want to tell you all to read this. The reality is (as it points out in the text) the overwhelming majority of you don't A/B test. If you don't A/B te

I really want to tell you all to read this. The reality is (as it points out in the text) the overwhelming majority of you don't A/B test. If you don't A/B test already you should stop reading about A/B testing and start A/B testing. It will be the most important thing you do today. It will probably be the most important single thing you do in quite a while. For the overwhelming majority of people A/B testing, this is similarly not really a priority for you today. You're fine doing what you're doing. (But... test more.) But for the sliver of a sliver of people who really need to care about moving the state of the art in conversion optimization forward, this essay is very important. If I had an A/BatSignal I would be shining it on this.