What We Mean When We Say "responsive"

My 2014 started with noble plans: not biting my fingernails anymore, learning actual math. One of those plans was to analyze, publicly- here -the divergent and dissonant definitions of our industry's adjectival darling, "responsive." Alas, I was beaten to the forum by Jason Grigsby, whose recent blog post, Defining Responsiveness, explores some of the very same questions around the term that have dogged me lately.