MLC week9

Critical thinking1
The social processes underlying the adoption of a technology/medium by dividing its effects into four categories. There are enhances, reverse, retrieves and obsolesces. According from the note given by lecturer, McLuhan developed a basis for his thought around what he termed the tetrad. The tetrad allowed McLuhan to apply four laws, framed as questions, to a wide spectrum of mankind's endeavors, and thereby give us a new tool for looking at our culture. The tetrad is a means of examining the effects on society of any technology or medium.



Critical thinking2
What does it (the medium or technology) extend?
In the case of the blogging it would be the paper writing.
What does it make obsolete?
Again, one might answer that the blogging makes paper writing obsolete. Blogging can substitute the pen ink or pencil to write in a piece of paper.
What is retrieved?
The sense of composition returns with the typewrite of the blog.
What does the technology reverse into if it is over extended?
It’s a very insecure way to type any private thing in the blog and it will be easiest hack by hacker.