It would be wonderful if we could just tuck in a few loose ends and change a handful of details of present systems to have them work properly. Unfortunately, we have learned that the GUI concept has fundamental flaws that cannot be corrected by small changes. These flaws have to do with incompatibilities between the designs of both GUIs and command-line interfaces and the way our brains are wired. As we cannot change the way our minds work, we must change the interface design.

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