No it isn't. Huge screens are, whether they come as standard monitors, virtual reality headsets, or 3D displays. People consume orders of magnitude more informa

No it isn't. Huge screens are, whether they come as standard monitors, virtual reality headsets, or 3D displays. People consume orders of magnitude more information that they produce. When compared to large display, voice output is just painful. Furthermore, moving eyes is way faster than any kind of navigation input, even voice. That's why displays contain way more information than what people are able to process at any given moment. And then there's this old principle of GUIs: making choices visible. Screen can list all available options. Voice UI cannot. Even command-line UIs support tab-complete for this reason. If I were to be very cynical, I would say that voice UIs shine when people are illiterate enough to avoid typing and reading. A less cynical answer is that voice UI fits where big screen doesn't.