First of all, “free market” is and always has been mythological.
There are governments that make laws that regulate many things including the flow of commerce to and from their lands.
Within these governments and their laws, corporations are given permission to form and generate income in currencies regulated by government operations.
“Free Market” is a fantasy realm that exists in the imagination.
Look at efforts to create fantasy, government-free currencies: the cryptocurrencies.
What are the substrates of those cryptocurrencies?
Functional internet of appropriate capacity
Functional computers with functional hardware of appropriate capacity.
Functional electricity that is stable enough to run computers and internet.
Stable housing and stable roads and wires and other communication equipment that stretch over large geographical areas that can allow electricity and computers and internet to function without much worry of being destroyed.
On top of those things:
Functional social networks on functional internet (which is a network of many smaller networkers) to allow communication between members to trade their cryptocurrencies
This internet needs functional trunk lines which are regulated by international bodies.
Of course you _can_ create other networks for cryptocurrencies that are not linked to the internet.
But that still leaves you with stable electricity and stable housing and still the problem of stable communication lines or satellites or towers.