Comment by lproven

> a single substantive UI improvement in the last 20 years?

On the desktop? No.

In human-computer interaction? The multitouch UI using a capacitative touchcreen, as used in the iPhone (2007, so 19 years ago) and iPad (2010).

This redefined how UIs work, so yeah, it's vastly significant.

The trouble is that now there's a whole generation of developers and desighers who literally grew up with it and its imitations, and they're trying to apply its "simplicity" to desktop WIMP GUIs. In the process they are removing things like, you know, the "M" of WIMP (whether it's "mouse" or "menu") because they don't see it as important.