Tetrads: McLuhan’s Laws and SQL

I have been going over all the past material in this blog as I am now working on my book. One of the things I am clearing up is my understanding of McLuhan’s Laws of Media known as Tetrads. All that McLuhan discovered and I don’t mean to diminish his work is discover the four manipulations that are possible with any form of media including data.

McLuhan’s four Laws of Media were:

  1. Retrieve
  2. Enhance
  3. Reverse
  4. Obsolesce

The four correspoding manipulations are:

  1. Select
  2. Insert
  3. Update
  4. Delete

Please dismiss any past correlations I made between the Manipulations and Laws of Media with the Six Interrogatives.

The McLuhan “Hexad”

When two systems encounter one another they make contact through a medium.

systemasystemb.jpg

What that medium is is actually irrelevant.  All media are prone to the same set of costs, benefits and violations within their context.  For example whether you medium is sound, documents or email it is possible to commit identity theft, generate spam or hold a constructive exchange.

In my previous posts I made the case for hexads over tetrads.  Then I cleaned up my insideness and outsideness concept.  I am now, going to make an intuitive leap now in dealing with Marshall McLuhan’s Laws of Media Tetrad and convert it into a Hexad as follows:

sixmcluhan.jpg

As you can see the additional two things that media does is recieve-transmit and translate.  I have modified McLuhan’s Figure-Ground binary model into a Figure, Figure-Ground, Ground trinary model.  I may be excommunicated by the media theorists, but I think it is worth the risk.

Intelligence is not Behaviour but Prediction

Came across a video of Jeff Hawkins of the Redwood Neuroscience Institute explaining brain theory.

polation.jpg

Remember, the above diagram as you view the video. Also think about the Universe of Discourse as explained by James Moffett. The theory has already been hinted at.

Tetrad Theories

Here is a table to describe some of the tetrads we have discussed so far in this blog.

tetrad3.jpg

The first column is our friend Structured Query Language (SQL). The second column is the four components of physiological and psychological health. The third column is the tetrad of McLuhan’s Laws of Media. The fourth column are the Zachman Framework’s four perspectives. The fifth column are the first four Structured Development Lifecycle (SDLC) phases.

The rows in the table correlate the similar facets of each of the tetrads. I will go into detail in a later post. How does energy, matter, location and event correlate? How do the Secrets of the Universe of Discourse correlate? How does data, information, knowledge and wisdom correlate? How does colon classification correlate?

Take a moment and let yourself stretch.

More McLuhan and Media as a System

After Marshall McLuhan’s death, his son, Eric McLuhan, completed a remaining work entitled Laws of Media. In it McLuhan lays down four laws as questions:

  1. What does it enhance or intensify?
  2. What does it render obsolete or replace?
  3. What does it retrieve that was previously obsolesced?
  4. What does it produce or become when pushed to an extreme?

Marshall McLuhan called this a “tetrad” and said it could be applied to any human artifact.

If we think about evolution and systems the tetrad can be applied to anything.

Consider this: you have an ecological system and a new organism evolves. How do you assess the impact? McLuhan’s tetrad is a perfect template for that analysis in the same way you would assess a human artifact.