> They obviously managed to learn and adapt to the current UI. Why can’t they adapt to a new one? Let me put it like this: would you rather relearn the same sk

> They obviously managed to learn and adapt to the current UI. Why can’t they adapt to a new one? Let me put it like this: would you rather relearn the same skill over and over again, or build upon existing knowledge by learning new skills? Watch an experienced vi user make changes to a document. That's not magic that you're seeing, it's someone who is modifying a document as fast as they can think because they are proficient with the software. That's true of pretty much any software that was designed with productivity in mind, it's just that vi users like to show off. :) Some software is also impossible to learn in depth if you take a learn today, gone tomorrow approach. Consider a rather popular application like Microsoft Word. There was a lot of resistance to the transition to the ribbon bar. A good number of people who resisted the change did so because they spent a great number of years learning the program in depth. There's a lot of stuff crammed in there that the vast majority of people aren't even aware of and even experienced users will only touch on every few years. With timescales like that, a sufficient number of changes to the UI means that the skill is useless once it has been learnt.