But if you're interested in how the scenario you mentioned plays out, read up on some of the history of Sealand:
It's still under the tax jurisdiction of the Province and Country.
How is this different when I replace the word island with acreage or farm?
There are some disadvantages that come with that. A determined group could keep you trapped on your island more easily as well.
The point isn't to escape jurisdiction, just to have a cool private summer came / work retreat place.
http://en.wikipedia.org/wiki/Territorial_claims_in_Antarctic...
Not quite. https://en.wikipedia.org/wiki/Bir_Tawil
I found elsewhere: "this is pretty much just 2,000 km2 of sand and rocks", and "consisting mainly of sand and rocks ... 2069 sq km (795 sq mil) and is shaped like a trapezoid." , and checked it out on satellite. The nearest road appears to be 250km away. Definitely no chance of internet. But even this place I suppose could be made habitable with long term effort. Solar would be a good bet for power, and long distance radio or perhaps microwave or satellite would be viable for internet. Semi-subterranean dwellings could be ideal and even support crops, once constructed. But investment would be significant. I wonder if you could fly in/out hardware, junk and supplies via solar-powered drone?
But very cool find nonetheless!