Snippets of speech

I’ve just watched an interview by Quanta Magazine with Leslie Lamport, the Computer Scientist, titled The Man Who Revolutionized Computer Science With Math [link to Youtube] Youtube kept shoving the video’s thumbnail into my face so I said, “Stop it already ok ok I’ll watch it.” Leslie Lamport said, “Coding is to programming what typing is to writing.” Well, before I spend a whole lot of time paraphrasing let me just copy-paste a snippet of the transcript (spoken in a rather dramatic voice):

1:25
Writing is something that involves
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mental effort. You’re thinking about what
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you’re going to say. The words have some
1:30
importance but in some sense even
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they are secondary to the ideas.
1:35
In the same way programs are built on
1:38
ideas. They have to do something. And what
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they’re supposed to do, I mean it’s like
1:43
what writing is supposed to convey.
1:46
If people are trying to learn
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programming by being taught to code… well,
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they’re being taught writing by being
1:54
taught how to type. And that doesn’t make
1:56
much sense.

So I wonder, “Could something similar be said about movement?” Typing is to writing, what movement is to …? dot dot dot? And… should I place movement into the spot of typing or writing?

Quanta Magazine’s Youtube video is a great viral video, and works really well as such. However, from my point of view, as a writer, my definition of writing would be very different from his, if I gave one. Does writing really involve mental effort? Is a writer really thinking about what he is going to say? Is the purpose of writing really just to convey ideas? For example, when I google for “Writing saved my life,” I get about 1,390,000,000 results. What’s going on here? And how would this compare to movement? What is movement?