You’d have to produce your own electricity and water, have no reliance on gas, not require a car nor public transport, not use a mobile phone nor internet, own your own land and have no reliance on banking, and have no reliance on selling any of your produce to anyone who might have those extraordinarily common dependencies.
These kinds of unicorns are going to be so ridiculously rare that you can safely ignore them as a statistical outlier. What’s more, at some point you can guarantee they’re going to come into a situation when thy do eventually depend upon the wider network, eg if they fall ill, break a leg, a family member requires support, their home requires repairs, or they need to buy tools that can’t be built themselves.
