I think it's great to see some live programming, with all the goofs and dead ends. While I appreciate the prepared demos that are common at conferences and else

I think it's great to see some live programming, with all the goofs and dead ends. While I appreciate the prepared demos that are common at conferences and elsewhere, they are more of a quick way to provide an intro to something new, and I feel they can give beginners the wrong idea about how real programming works. Seeing the whole development process, warts and all, live like this is amazingly educational. Props for doing this Notch!