Different perspectives on self-sufficiency will yield very different choices. We've had libertarians and futurists scoff at the idea of growing their own food rather than just importing it, and we've had environmentalists who thought our ideas of self-sufficiency still depend way too much on the outside world. There is no "correct" solution, since the optimal seastead for someone who sees local, do-it-yourself production as a plus is different from the optimal seastead for someone who sees it as a minus. This may cause difficulties (and require compromises) on the first seastead or two, at which point the groups will probably split. Our exploration of these technologies is biased by our particular viewpoint on a good level of compromise, but keep in mind that more or less trade are always available options.