People discovered the underlying technology of Bitcoin and approved it. They also recognized Bitcoin's status as gold in digital world. Bitcoin's global consensus is expanding:
- firstly, consensus is reached among Bitcoin believers,
- and then step by step this consensus penetrates different countries and central banks,
- and finally it'll be accepted by everyone.
Now you'll find that the essence of currency is still consensus, and its value is given by consensus as well. The collective consensus will gradually render Bitcoin a world currency. No one can resist this trend but adapt to it.
Yeah, a currency is something which needs to be accepted by everyone; otherwise it may not serve the purpose of transaction intermediary. So, what is winning in consensus might be sustaining and others may get outdated. This may not be the nature of currency but this is how a currency should be developed. This kind of development is easier for governments but creating something for transaction intermediary without power to enforce to adopt must be a challenging one still bitcoin is winning in consensus due to its characteristics.