JULY 19, 2029
THE DAILY McLUHAN DIALOGUES™ • McDialogues™
Understanding the Grammars of Electric Culture and Propaganda Science™
An Exploration of Technology Ecology as an Anchor in a Sea of Change™ and Tactical Training in Counter-Propaganda Science™
by Nelson S. Thall Former Director/Chief Archivist, Marshall McLuhan Center On Global Communications, Ross, Ca.
When the Nervous System Comes Outside the Body: Can Machines Read Our Thoughts?
A Student of Technology asks:
Mr. Thall, according to recent reports, brain-computer interfaces are allowing people with paralysis to control computers by thought, and Neuralink has begun an investigational study designed to restore speech by decoding intended words directly from brain activity. Commentators now speculate that machines may someday be able to read our thoughts. Can machines read our thoughts?
Nelson S. Thall replies:
Before asking whether a machine can read our thoughts, we must first ask what a thought is. That question has been neglected because we have confused the brain with the mind. The brain is a physical organ, and like every other part of the body it produces measurable electrical activity. But electrical activity is not consciousness any more than the vibrations of a violin are the musician. The Scriptures reveal that it is "the spirit in man" that transforms the brain into the human mind. Without understanding that distinction, we mistake the instrument for the player and imagine that decoding electrical signals is the same as reading thought.
Brain-computer interfaces are among the most remarkable medical advances of our time. They are restoring communication to people who have lost the ability to speak and giving movement back to those who cannot move. In that sense they fulfill Marshall McLuhan's observation that electric technology extends the central nervous system. Run this new medium through his four laws and its shape appears. It enhances intention, carrying speech and movement past a body that can no longer deliver them. It obsolesces the mouth, the hand, and the keyboard as the only gates of expression. It retrieves the ancient dream of speech without speech, the word passing directly from mind to machine. And pushed to its extreme, it reverses into the readout mistaken for the man. The machine may decode signals associated with intended speech or movement, but it does not read consciousness itself. It extends the nervous system. It does not penetrate the source from which consciousness arises. Technology can amplify the powers through which consciousness acts, but not consciousness itself.
The danger, therefore, is not that machines will suddenly become conscious or invade the deepest sanctuary of the human mind. The danger is that we shall forget the difference between the measurable and the immeasurable, between the brain and the mind, between the instrument and the musician. The brain is the instrument. Consciousness is the musician. Machines may study the instrument forever without ever becoming acquainted with the musician. Every technology extends some human power. Yet the essence of man, his consciousness, cannot itself be extended, amputated, detached, or manufactured because it is not material but spiritual in origin. Machines may one day interpret the brain with astonishing precision, but the Private Citadel of Consciousness remains beyond the reach of every material instrument.
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© 2026 Nelson S. Thall. All Rights Reserved.
All intellectual property contained herein was conceived, originated and authored exclusively by Nelson S. Thall. Artificial intelligence, aka a pseudo-conscious machine (PCM), was not employed. We hired a stenographer. No intellectual contribution or creative authorship is attributed to the AI tool. All rights of authorship and ownership vest entirely and exclusively with Nelson S. Thall. © 2026 Nelson S. Thall. All Rights Reserved.
I can be reached at: nelson@themediumisthemessage.com