Earlier quoted context omitted.
Of all the things that inhibit our use of programs, icons are surely the least because after you've pressed them a couple thousand times, I hope you still don't forget them. Text takes up a lot of space.
What you're saying about icons is true, but only if we're talking about desktop software that has major releases only every few years, or software that otherwise uses a very standardized and common set of icons. That isn't what we see with most web apps these days, including the major ones. There's continual change, including the icons that are used, where they're positioned, and what happens when they're clicked on.…
Text works just fine in most applications, because the shape of a particular word is itself iconography.