I've already seen some interesting replies to this and this one hits on one of the first things that came to mind as I was watching the video, which is, How would we protect physical property if the local government decided to take up arms and come for us? This is my primary concern regarding the sea steading suggestion @trostparadox mentioned above. It seems like this is an endeavor that would have to take place somewhat under the protection of a major government to secure the safety required to really get a foot hold somewhere... which obviously defeats the purpose, lol. Very interesting discussion around this concept. I'm looking forward to others' replies.