The Next Medium Defines this Medium

To me this was the stand out bit:

You could use a similar analogy for computer games and roleplaying games, and say that a computer is to a roleplaying game what a movie is to play.  As computers became masters of heavy math then roleplaying games could see their limits and focus on other areas like the social aspect or the physical play area.

Everything you think about Game Mastering is probably wrong: Part I – The whole concept