Is Twitter really an example of a business? To be a business, you need to have higher income than expenses. So far, that has eluded Twitter -- and there's no

Is Twitter really an example of a business? To be a business, you need to have higher income than expenses. So far, that has eluded Twitter -- and there's no indication that they are going to start spending less than they're making in the near future. Also, I can see them making money from advertising. And after that... what? I'm willing to believe and admit that Twitter is a game changer in many ways. But I'm far more skeptical of their ability to make money and survive. Clearly, Twitter's investors are bullish on Twitter's ability to make money. But if their optimism doesn't pan out soon, everyone with Twitter stock is going to be quite upset.