How does Mercury aspects influence writing/speaking skills online?

“It is not sufficient to know what one ought to say, but one must also know how to say it.”
-Aristotle (Rhetoric)

If Mercury is how we think and how we speak, is it safe to assume that it is also “how we write”?

If this is the case, what aspects of Mercury (or anything else) influence a person’s writing style?

What aspects would someone with a concise writing style have versus one that is stream of consciousness, scattered or inarticulate?

Possibly related posts: (automatically generated)

Do you find this to be true as well about people and writing/speaking skills?

It seems to me that usually, people who are extremely charismatic and use their words well when they speak are not usually as good with writing. On the other hand, people who are very advanced and descriptive in their writing skills are usually not as charismatic and have more trouble saying what they’re trying to say. I have found this to be true in general, but not in everyone. What do you think?