That's a stupid example and it undermines everything sensible you said elsewhere.

What about the following useful usecases?

* on-the-fly syntax validation * non-blocking as-you-type completion * live results from shell commands * fast syntax highlighting * etc.

Well a clock is pretty easy to make, so an easy challenge to anyone countering me, you just change some numbers somewhere, but sure. I guess I just didn't have the imagination to think of something better while in rant mode.