The digital age confers upon all internet-connected individuals the means to express their opinion to billions, to the entire connected world. The problem becomes that there are so many reactive opinions that flood into cyberspace that few opinions attain much resonance with the masses.
So, say you have read something or encountered an absurdity in daily life which triggers the desperate need for you to convince others to see different aspects of the issue, to view the issue in your way. Maybe it is an issue about which you care deeply, and one about which you have an insight which you feel could really make a positive change in the world. To learn how to express yourself with powerful impact and make your voice heard, you must develop your case logically, write persuasively, and punctuate everything with visual impact. Only then will you have a chance to change minds and change the world.