I see your point, but I think we’re held back not by UI, but by input methods, including physical ones. And I partially attribute that to vim’s [niche] success. It’s so annoying to hold ctrl-shift to select anything in windows-likes and personally I make much more mistakes while properly fingering the keyboard in these than while using vim modes. The path I see is to make better keyboards with separate keys for fundamental edit ops like selecting, language switching, word/structure navigation, etc, and then some more. We’re too stuck in these typewriter interfaces.