I’ve gotten this question several times recently, so I’ve drafted an answer for the book’s extended Q&A. Feedback would be welcome.
Some people’s instinctive reaction is to question why we need new countries when bad laws can just be dealt with by ignoring them, hiding illegal activities. What would you want to do on a seastead that you can’t just do in your own home? There are a number of serious problems with hiding as a solution to bad laws: