Modern editors often implement a vi mode, so technically everything already has been reproduced in modern text editors. Aside from just decades of experience i

Modern editors often implement a vi mode, so technically everything already has been reproduced in modern text editors. Aside from just decades of experience in efficient editing of plain text files over slow connections plus all the modern stuff on top, I'd say text objects, which is one of the first things you learn about vim. And it's not a web browser.