According to this chart (http://visual.ly/chinese-new-dominant-language-internet), Chinese will be the dominant language on the internet in about five years. Will you be able to read your Google, Firefox, and Mozilla search results when they come up in Chinese? No, I won't either.
Last week my mother called me. She didn't have a current email address for someone, and hoped she could get it from me. I said, "I don't know, just send him a message on Facebook. He's one of your friends, isn't he?" It hadn't even crossed her mind that Facebook is a way to contact people.