I first though that the problem being discussed was about price, and income differences between countries, but finally i just understood it as a 'weight' problem.
Let me rephrase the problem: If one earn some coins for doing his job, how can he store them securely, and how can he buy something 1000km away (on let say, eBay) if he need to send a packet of coins to the seller?
So, we are speaking here about the money itself (let say coins, concrete or virtual), and how to make…
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