I guess I can see it in that regard, and knowing the implementation of it is complete and robust helps a lot. And I can see how this is useful for interface des

I guess I can see it in that regard, and knowing the implementation of it is complete and robust helps a lot. And I can see how this is useful for interface design; most of the good IDE gui toolkits of the past preview live as well. But I also think this lessens the requirement for a solid mind's eye and ability to visualize changes before you make them. Having come from desktop development (with "live" gui development kits like VB) into webdev I guess I got used to code-a-bunch-of-stuff-and-hit-reload pattern. As long as it doesn't get in my way, I'm cool with it.