So you're taking it as assumed that there is one, singular interface that people will be using for the whole day. Even now, while designing and thinking things

So you're taking it as assumed that there is one, singular interface that people will be using for the whole day. Even now, while designing and thinking things through I usually alternate between typing in a text editor, drawing on a whiteboard, taking notes on paper, discussing verbally with other people in the office, and just pacing up and down thinking to myself. The whiteboard for example is essentially a specimen of the much-maligned vertical touchscreen interface, and I don't see why it couldn't be made into a computationally-driven dynamic display.