So I've noticed this more and more as I use the new OS more and more. The UI is really fragmented in features. Here's a submission I made for the OSX Feedback system. To reflect on this, doesn't it seem stupid that you cannot use the same gestures across the whole OS? I understand why Firefox and Chrome don't have these features, because they're 3rd party applications, but why can't you pinch to zoom in mail, or why can't you use the 2-finger swipe in Finder or System Preferences? Now, I'm young and forgiving, but if I were trying to explain this to someone who is not as computer savvy as I am, they would drive me insane. "Why can't I go back in finder the same way I go back in Safari? It worked in Windows." I'm interested in some feedback on this. I know this isn't Apple's top priority, but I feel that it should be resolved nonetheless.