I take fiduciary currency to be the opposite of fiat currency, yet we know bitcoin's value in exchange for goods as well as it's price in other currencies, fluctuates. In other words, there's no way to speculate with a fiduciary currency beyond it's backing.I think Bitcoin is more of a fiduciary money, than strictly a fiat currency, but I'm not a big enough money nerd to really argue the point....probably just semantics anyway.
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