That's why people are attracted to Twitter: it's live. You get Twitter in real time, and you can't un-say what's been said. Even when people try, readers make screen caps. Typos and other mistakes just scroll past; readers have already moved on. They're still accessible, because the Internet never forgets, but it only retains focus when you've monumentally screwed up -- and even then only briefly.

It's that living-in-the-moment feeling that has kept Twitter alive to this point, and if anything takes it down, it'll be by something that manages to be even harder to edit. Perhaps a live feed directly from your keyboard, or your mouth, or your camera -- or brain.

If you don't want to participate in that, you stay off Twitter. I find it bizarre myself. I like to get my moment-to-moment experience from what's in front of my face. But that's very limiting, and a lot of people seem to prefer the stream of consciousness from the entire rest of the world.