all the knowledge in the world

Even if I had time to read and learn about all the social networking and such that ones needs to be an expert on, would I really want to spend all my time working at it? What would I really do with all that knowledge? I want to write and have people enjoy my writing. I'm not going to be the source of expertise on anything, although I have an opinion on most things and would happily share. I could come up with an entirely new concept and be the expert on that. I could just state that I'm an expert at something I like to do and then people want to hear what I have to say. That's what happens on the news everyday. The "experts" they find for network news are something else!