Love the material.  One thing that would make it easier to follow is to label the tables.  The screen is very static and if the tables being discussed were labeled (Customer Table, Orders Table, etc.) it would be more clear.

Also, maybe as you're discussing which fields need to be moved you could place a box around them to highlight what you're talking about.  That way we know specifically what you suggest should be put in a separate table.

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Reply from Richard Rost:

Thanks for the suggestions. Alex highlights a lot of these things in the handbooks, which is why I highly recommend that you follow along with them while you're watching the video. They tend to explain things that aren't perfectly clear.