How many currencies can you buy and sell Bitcoins in?
In the vast and ever-evolving landscape of cryptocurrency, the question of which currencies you can utilize to buy and sell Bitcoins remains pertinent. With the rise of numerous altcoins and the integration of traditional fiat currencies, the options for exchanging Bitcoins have multiplied. Could you elaborate on the diversity of currencies that are currently accepted for Bitcoin transactions? Are there any specific limitations or regulations that govern these exchanges? Furthermore, how does the choice of currency impact the overall efficiency and cost of Bitcoin transactions? Your insights into this matter would be greatly appreciated.