Efficiency v. User Experience -- Almost no more need be said than this quote: This whole situation — polling vs. responsiveness — is somewhat indicative of what I have always viewed as a problem with the direction of Mac OS X's development. Granted, polling is bad, but its existence in classic Mac OS was indicative of a value system that put the user experience first. "What is the best possible user experience?" is the primary question, only then followed by "How can we make that happen?" In Mac OS X, it seems to me that the first priority has been to do what is most efficient, and then try to provided the best user interface that can feasibly be implemented on top of that foundation. The shoe is on the wrong foot in such a system.
Safari's UI -- My favorite bit here is this quote: "Also notice the combination stop/reload button, because why have two separate buttons for functions that are mutually exclusive?" ... so very true.
