I think what Dan said has merit: that ultimately, we should be moving beyond our current world where words can control perception. However, there is no doubt that at this point of space and time, words have so much power, it would be foolish to disregard their potential to help create positive change.

Think about the influence that religion has held over people. How are religions passed on? Through the words of the prophets. One quote from the Bible stands out in my mind: "In the beginning there was the Word..." John 1:1. Before a god, there were words that told us about god.

Think about the governments of the West...no, better think of all bureaucratic models, and then think how rhetoric defines what is "important".

Furthermore how do the traditions of our cultures, the stories of our parents, and the knowledge of first peoples transcend the generations? Through the spoken and written word almost completely.

Humans are unique in their ability to communicate ideas ranging from the mundane to the highly complex. And how do they do this? Words.

I don't think that the example given in the YouTube short is ideal, I simply think that the idea behind it is true: that words can have a big impact. It isn't about using words to create divisions (though they certainly are capable of doing that and have done it in the past), it's about using words to construct and breath life into a better reality.

Therefore, I say to all those who wish to create change in this century, do what has worked for humans thousands of years before you: first create the language that communicates change simply and effectively, and then watch change happen.