The Medium is the Massage

"When this circuit learns your job, what are you going to do?"
This provoked thought in my mind, as this is already taking place. Many workers are now (and have been for some time) being forced out of their workplaces and professions because computers can now do what they (the people) have been doing for many years prior. We live in a day and age of mass production therefore in a mass production factory for example, the only job for humans is possibly to work the computers/machines.
Though on the other hand, nowadays many more people are aspiring to get 'higher class' jobs and get into highly acredited professions. It is in fact these people who are inventing the computers/machines that take over other peoples jobs. It's all a terrible cycle. People want to better themselves, so they invent items to take humans further, which in turn makes many other peoples jobs redundant.
Also,
"All media are extensions of some human faculty..."
This reminded me of a brief we did for media last year which evoked our thought into how every invention, gadget or machine is somehow an extension of man. The example in the text is that, 'wheel is an extension of the foot', or 'electric circuit is an extension of the nervous system'.
Either way, this topic alone triggered thought in me last year, as it has now. I don't fully agree with the statement that everything is an extension of man, I think inventions are only a tool to assist man.