This article sounded more like three reasons to go to that conference. Is there some kind of actual description of techniques that constitute Lean UX, or is it

This article sounded more like three reasons to go to that conference. Is there some kind of actual description of techniques that constitute Lean UX, or is it a methodology, or is it just a reason for me to pay somebody $800 for something? Because I'm not actually seeing any reasons to care. Yet. (I'm not saying they're not there; just that I'm not getting them out of this article. Sorry.)