You're absolutely right, it all comes down to tolerances and accuracy. Their argument works backwards to get to this magical 366 number. I'm afraid I gave up trying to review this book in a cogent way as the amount of effort required to counter their convoluted thought processes was not proportional to the useful outcome, and the Portal needed me more. If you'd like to try you're welcome to borrow my copy.
Andy
Something is not right. This message is just to keep things from messing up down the road