If you were to design a GUI of your own, what would you include as a key feature (that hasn’t already been used)?

If I were to design a GUI of my own, a key feature that hasn't already been extensively used would be an intelligent contextual assistance system. This system would proactively provide guidance and support to users based on their specific context within the GUI.

Here's how it would work:
1. Dynamic Interface: The GUI would adapt its appearance and arrangement of elements based on the user's workflow, preferences, and the specific task at hand. It would intelligently rearrange, hide or show certain elements, and adjust the layout to optimize efficiency and minimize clutter.

2. Contextual Awareness: The GUI would be equipped with advanced contextual understanding capabilities. It would be aware of the user's current actions, workflow history, and overall goals. This awareness would enable the GUI to predict the user's next steps and provide relevant assistance, suggestions, and shortcuts.

3. Intelligent Assistance: The GUI would actively offer helpful suggestions, tips, and guidance in real-time. For example, if a user is typing a command or entering data, the GUI could provide auto-complete options, syntax suggestions, or data validation prompts. It would analyze the user's pattern of usage to intelligently adapt these suggestions over time.

4. Interactive Tutorials: The GUI would have an interactive tutorial system embedded within it. This system would provide step-by-step demonstrations, walkthroughs, or video guides for various features. Users could easily access these tutorials as and when needed, without having to search for external help resources.

5. Natural Language Interaction: The GUI would support natural language interaction, allowing users to issue commands or ask questions using their own words. The interface would use natural language understanding and processing techniques to interpret user queries accurately. It would then provide appropriate responses, carry out requested actions, or guide the user towards the desired outcome.

Overall, this intelligent contextual assistance system in the GUI would aim to enhance user experience, improve productivity, and reduce the learning curve associated with new software or tools.