[Metaphors can be misleading when aspects of the source are not in the target, or vice versa, for example: saying that a word processor is like a type-writer will not cause someone to look for a 'replace' command.]
[A city designed by the same architect using the same visual appearance would be difficult to navigate and somewhat boring.]
[Language allows us to reference things that are not visible or things from the future in a way that see-and-point does not.]
[Sacrificing control allows us to benefit from the effort of others. We may not want someone re-arranging our desk, but notifications, automatic trash cleaning, and background news fetching are all useful.]