What I implore you to do is believe that if you make courageous choices and bet on yourself and put yourself out there that you will have an impact as a result of what you do, and you don't need to know now what that will be, or how that will happen, because nobody ever does.
We have a core value here at Twitter that says we want to defend and respect the user's voice. And that's important to us on a global basis. Someone doesn't sign up for a service expecting that their sign up information is going to be handed over without them being asked... We're going to defend our users' rights.
The interesting thing about the top 200 to 300 tweeters - a lot of them are musicians, actors, etc. LeBron James, etc. I think Lady Gaga is number one. But! They're not all celebrities. There's 'CNN Breaking News.' And the 'New York Times.' And other brands like Gary Vaynerchuk, who aren't really that known outside that world.
I think if you look down the road for Twitter, we would like to be a company - a service - that is used by billions of people around the world in every country in the world because we feel that the power of Twitter is that it brings people closer to each other, to their governments, to their heroes, etc.
One of the things that amazes me about Twitter is the way it utterly eradicates artificial barriers to communication. Things like status, geopolitics and so on keep people from talking to one another. Those go away in Twitter. You see exchanges that would never happen anywhere else.