Word can show you every change you made, as well as tools like Confluence (which is just a version-controlled WYSIWYG Wiki), and let you diff/revert individual changes.
GUI design diffing is pretty simple too: you collapse a flowchart into a DAG and then diff the changes between two copies of the DAG. It's how you troubleshoot DAG-based software bugs. We could also just make a better way to diff GUI changes, if we tried. It's not nuclear physics...
If people started using GUIs more, then they'd find new problems, sure, but then they'd just make solutions for them. There isn't a problem we can't solve. Except for the problem of changing a culture, like a culture of text. Culture is the hardest thing in the universe to change.
GUI design diffing is pretty simple too: you collapse a flowchart into a DAG and then diff the changes between two copies of the DAG. It's how you troubleshoot DAG-based software bugs. We could also just make a better way to diff GUI changes, if we tried. It's not nuclear physics...
If people started using GUIs more, then they'd find new problems, sure, but then they'd just make solutions for them. There isn't a problem we can't solve. Except for the problem of changing a culture, like a culture of text. Culture is the hardest thing in the universe to change.