That's an excellent point. Having a higher lowest-common-denominator to cater to will definitely make for an interesting UI. The sweet spot is to match the UI specialization with tangible productivity gains. All the modern UI simplifications slow me down tremendously. Gestures are crazy slow compared to clicks and keyboard shortcuts. Even something universal like pinch-to-zoom, I can do it faster with mousing over the place where I want to zoom, hit control and scroll to zoom in/out. Also, I think having a voice command based AI would amazing - with the caveat that it actually works of course :).