The next thing in user interfaces is combining LLMs with GUIs to create a flexible interface that isn't fully defined in advance but works with the user to adapt to their needs. This is a total departure from the pixel-copying design methods we have today and there is no tooling yet for designing such an interface.

In a few years time, we'll expect all applications to have LLM inputs and full natural language understanding in addition to their menus and buttons, just like we expect all software today to make use of the internet where before, none did.