Well obviously the works produced by a typewriter aren't speech because the works are produced not by a person but a mechanical contraption. And let's not star

Well obviously the works produced by a typewriter aren't speech because the works are produced not by a person but a mechanical contraption. And let's not start with a blog post or website comment. Those aren't speech because they aren't even written by human hands they are instead just using a very fancy elctro-mechanical mechanism for transferring a series of electric waves from one individual to another across the palent.