What all this means is that a new medium doesn't just offer a new way for people to communicate. It changes the way in which people communicate and is thus a message itself. The way in which people communicate would tell an alien to this planet exactly what the people are like. The written word is a linear format that speech tries to imitate. In a world based on the written word everything is produced in a linear fashion. There is a beginning middle and end to everything. It is nearly impossible to begin something in the middle of the process without becoming hopelessly lost. This is a very different world from the pre-Gutenberg era. In that time the world was based on speech. It was not based on a linear format.
These two examples also demonstrate another one of McLuhan's facts.
"This fact, characteristic of all media, means that the 'content' of any medium is always another medium. The content of writing is speech, just as the written word is the content of print, and print is the content of the telegraph. If it is asked, 'What is the content of speech?," it is necessary to say, 'It is an actual process of thought, which is in itself nonverbal" (McLuhan, 1995, p.151).If this fact is combined with the fact that a medium does not add itself onto another medium, but that it creates a new medium, it is possible to see that the medium is the message since it changes the world in which people live to have them act and communicate in totally new ways.

