Your comment is directly on target. An important element is determining the various angles, and having the tools to make the double and triple miter cuts. This also is part of the fun, and why we do projects such as this.
Similarly to the gentleman in the picture, many of us have made a commitment to Ryobi cordless tools. We are passionate about our tools. Again, similarly to the gent in the picture, we also want a Ryobi shirt. It is hoped that Ryobi reissues the shirts to Ryobi Nation members.
You are perceptive. The rocking chair is intentionally extra-sturdy so it will stand up in the elements by the dock. For example, the chair contains numerous over-lapping tongue joints---joints which allow substantial surface contact, but are easily cut on a band saw.
I am relatively inexperienced. This is my first rocking chair. The design was developed as the chair was built---without plans and without a model. Any comments from the group are welcome.