My own jazzy interpretation of this is that it means something like responsive design by constraint. Think struts and springs and juicy animations sensitive to

My own jazzy interpretation of this is that it means something like responsive design by constraint. Think struts and springs and juicy animations sensitive to user-controlled context and the viewport. So an edit button may rarely be in exactly the same place at the same time, given scrolling and device and window size differences, but rather appears, animates, and settles according to a script.