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Bitcoin is a technology, it can freely copied but the system relies on a network, infrastructure and users that give it more value than a copy.
Agreed.
Bitcoin has the prime mover advantage, but is also hobbled by miscalculations inherent to every prototype, some of which are impossible to correct for at this point (excessive block reward, for instance).
But that's a tangent. All I meant to suggest is bitcoin (the unit of this blockchain) is not Bitcoin the technology.