> Intuitive maybe == skeuomorphic which in turns means that it builds on the training and the expectations of all a lifetime. Sure, but everyone brings some fa

> Intuitive maybe == skeuomorphic which in turns means that it builds on the training and the expectations of all a lifetime. Sure, but everyone brings some familiarity with the physical world to the table. The first things babies learn are the effects of pushing on things, some idea of weight & momentum & gravity, et c. The best UIs build on that when possible. If you push two things together and they "click", they should stay stuck together until "pulled" apart somehow. This is why touch screens can be (but aren't often, since iOS took a big shift in version 7, anyway) very intuitive—they allow more natural and direct interaction with what's happening on the screen. You can "push" two things together, you can "pull" them apart, you can "squeeze" things, you can press on them, and there's not even the abstraction of a mouse in the way. Even with a mouse, clicking is abstract (I'm clicking down here, something's happening up on the screen), motion is surrogate, "dragging" is very abstract when you think about it, et c, and that's where you start with desktop UIs, before you even throw in anything else.