Bitcoin is the first codeword to be released in a variety of codecs. It was invented by Satoshi Nakamoto in the form of open-source software from 2009. Bitcoin can be exchanged directly with the connected device. Internet without the need of a financial intermediary. Because Bitcoin is the first encoded currency to be created, all codecs generated since then are called Altcoins or coin code. substitution. Litecoin, Peercoin, Feathercoin, Ethereum and hundreds of other encoders are Altcoins because they are not Bitcoins. It has many advantages to create a new era for cyptocurrence

this answer will be more real, if in the future bitcoin can be a tool of transactions for all elements and without exception.

Right now it is a hope that shines bright. Hopefully yes it will be the general currency. Everything is possible!

maybe the bitcoin is a future currency. Today, many people dont know bitcoin,in future  maybe many people needs it.

I believe that many countries should legalize the crypto currency, and only then can it be considered that a new era has come.
But it's not soon and not exactly 

I am never sure that bitcoin will be a new era of currency, until now there has not been an official bank accept bitcoin so bitcoin difficult used en masse. Maybe need more than 15 years again to be new era of currency.

Bitcoin just as a commodity (like gold) and a digital asset. Bitcoin is not a currency. I firmly reject the bitcoin as currency. Why? because bitcoin is fluctuating and it goes against the terms of currency and currency theory (you can search for this)

I think bitcoin is the new era of currency maybe because of its price. We all know that it is the most expensive value in any currency, so that it is the new era of currency. And bitcoin is the new type of money, therefore you can use it in buying foods, clothes or any other things that you need and want. In the present, somebody used bitcoin for buying so what more if in the future? Of course, it can be used in the future also.

All these virtual currencies that come out have to regulated first and must be centralized for them to be the future  money, unless we are allowed to be live in a world where there are no governments and no regulating bodies. For anything to prosper, the government must always have a say in it and must have control over it, otherwise it would just be another form of currency that can easily be forgotten or worse banned from a certain place.