[mkhattab]

What is immediately intuitive about anything a programmer does on their machine? I assume you have used a Unix shell, right? Was there anything immediately intuitive about that? You've probably done some programming, so was there anything immediately intuitive about your programming language?

[ricardobeat]

You press the key labeled 'X' in the keyboard, and an X shows up in the screen. Can't be more intuitive than that.