I grew up with a pretty bright kid who spoke in a "stream of consciousness" manner (I forget the official name for that). He could write a formal paper properly, but any notes he sent (this was in the '70's, and we still used the written word for notes) were much like Mike's...an extension of his spoken words. I actually get a smile when I read Mike's missives, because it reminds me of Chris. Long time ago.
You can tell that mik is someone who is smarter than average but lacks the filter and calmness to express himself well.