I love how it starts with "watch this video first".

Thanks though Jeff, I don't really like videos, but your stuff is always high quality and fun.

Heh, well in this case there is good context in both the video and the blog post. To be honest, I usually prefer the blog post, and that's why I typically write up a completely separate blog post (or series of posts) for every video where there's technical detail.

Ok I've watched the video and I highly recommend it to everyone - very fun and interesting!