As for seasteading, there have been plenty of experiments testing the theory that a tiny nation can become very rich from being a laxly-regulated, tax-free place for rich foreigners to park money. It works very well until you try to generalise the results to larger economies and end up like a certain Mediterranean tax haven with a non-state currency...
The trouble with dismissing the knowledge accumulated by those whose experiments failed is the risk of being condemned to repeat them...
Besides, your comment basically says that you don't have data to support your position, but you have a hunch, so we should just trust you on this.
Now today the question is whether the "mixed economy" which allows unlimited state intervention (which does indeed lead to Cyprus) is better than fettered government and unfettered capitalism. We're going to find out.