"One could even go so far as to claim the current banking system is more decentralized than bitcoin at this point. The Federal Reserve is composed of 12 banks across the country which then lend money to the nearly 7,000 banks in the country, not to mention the thousands of credit unions as well.

On the other hand, bitcoin (although still in its infancy) is currently managed primarily by four large mining pools, all out of China. While these pools are networks of many individual miners, there is uneasiness about this predisposition."

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