He starts by saying, "Oh, grab about this much". No measurement given...not a good beginning.
Then, the entire construction portion of the vid is shot from the audience viewpoint, which
means you have to swap left and right for every thing he does.
And of course, he doesn't
mark the pages of the papers so that they're easy to follow as he flips and flops the pages. As a
matter of fact, one of the pages that he uses have vertical AND horizontal print, so even knowing
which edge is up is more difficult than it should be.
It's waaay more difficult than it
should be. Drawings would have been much simpler.