I think that is because, at their core, computers parse language (be it computer or human). At some point you need to input that language, which is a task keybo

I think that is because, at their core, computers parse language (be it computer or human). At some point you need to input that language, which is a task keyboards and command-lines excel at. It's the lowest common denominator, so it will always exist. At the same time, there are ways that you can program a computer that do not rely on pure text input. We've already seen things like Scratch, GameMaker, and Unreal Engine's blueprint system explode in popularity. When the tools are built, people will use them, and they can supplant the previous paradigm. I think there are advantages VR/MR can have for simple text input, too. I would love to have a virtual work environment where my files live in "physical" locations, where I can visit them as if they were sheets of paper or trinkets, arranging files or bits of code in front of me into graphs I can walk around and draw on like a whiteboard.