Pointing is a metaphor we all know. We’ve done a lot of studies and tests on that, and it’s much faster to do all kinds of functions, such as cutting and pasting, with a mouse, so it’s not only easier to use but more efficient.
Part of what made the Macintosh great was that the people working on it were musicians, poets, and artists, and zoologists, and historians. They also happened to be the best computer scientists in the world. But if it hadn’t been computer science, these people would have been doing amazing things in other fields.