If what is meant is money as a means of physical payment, of course the most important thing is the US dollar, because it can be accepted as a means of payment throughout the world. Besides that the US dollar is not too volatile like bitcoin.
But for digital currencies, bitcoin is in a prime position to be used in countries that have legalized cryptocurrency. Bitcoin is the most popular because in addition to being a payment tool, Bitcoin is also traded or a profitable investment in the future.

I agree with your opinion that bitcoin can be used for terrorism activities, but isn't it without bitcoin they can still carry out terrorist activities? ... So, I think positively that bitcoin is digital money that will be very useful in the future because the age is progressing where everyone will use digital devices in their lives.
Don't think of bitcoin for now, but think of bitcoin for 10, 20 or 100 years ahead where the world has been put together by internet devices with a touch on sophisticated mobile phones that can do anything, including bitcoin transactions.

People admire Warren Buffett because he has proven himself as one of the richest people in the world, and he gets his wealth by buying troubled stocks, then polishing them into expensive stocks.
All investors learn from Warren Buffett's success and imitate the way of thinking and analyzing stocks. But his opinion about crypto is often a debate because of doubts about crypto.

I received many questions about bitcoin, because for them bitcoin is something that doesn't make sense, some people even think it's impossible to provide benefits to its users. Even though the evidence I show is clear, but they think it is fraud.
Finally I don't want to bother, and give internet links  about bitcoin, how it works, bitcoin trading, even people who have made millions of dollars in bitcoin. Let them think, this is a business opportunity whether to accept it or not, I have no right to impose.

I prefer bitcoin investment compared to gold, because with bitcoin investment I can expect to get rich. This is the dream of all investors, and bitcoin has provided evidence in 2017 that many have become millionaires. This is because the price changes are very fast and very large.
It is different from gold investment where the price changes are very slow, so gold investors who get rich are basically rich, because to buy gold as an investment already requires very large capital.

Achieving profits is a strategy, without proper analysis of the bear market will be detrimental. But for professional traders where every day they trade, of course the bear market still provides profits.
They are experts in seeing the time when prices tend to go down on that day, then they buy for several hours and sell it when the increase has arrived. Indeed the increase is not much, but there is definitely an increase. Remember, crypto trading is the most volatile. Patience becomes the main point and greed can be a factor of loss.

I have a different view, because bitcoin investment can start at any time and at any price. Now the price of bitcoin USD 8000 in my opinion is very feasible for investment because of the prediction going forward until the end of the year the price can reach USD 10000.
If waiting for the price to go down for investment, it will certainly miss the momentum, because there is no certainty when bitcoin will go down. As for investment, chances are that prices have gone up even higher. So, I am optimistic that now it is appropriate to buy bitcoin.

Bitcoin has entered the bull market, the price has exceeded USD 8000, certainly a question whether it will stagnate here or will increase again. The crypto market as a whole is excited, this situation must be maintained because it makes the crypto  become positive.
I predict the price of bitcoin will continue to rise even though it is not drastic, followed by an increase in altcoin. Large investors will continue to buy bitcoin because they are hungry whales after 2018 experiencing deposition of capital due to the price of bitcoin slumping.

There is no government role in developing Bitcoin, because bitcoin is an ecosystem that runs anywhere using the internet. The government cannot make changes to bitcoin technology.
However, governments everywhere will protect their country from the adverse effects of bitcoin or will find a loophole to benefit from bitcoin. Because bitcoin cannot be stopped, it is better to find a solution so that the existence of bitcoin benefits the government.

I see an increase in assets from the money invested in bitcoin a few months ago, where when I bought the price it was still in the range of USD 4000 and now the price of bitcoin has reached USD 8500. This condition is also experienced by altcoins who almost all experience price increases.
Using economic terminology where price increases occur evenly can be said to have entered the bull market. Crypto trading has increased in volume because transactions occur over time, a sense of optimism is felt by all investors because profits can occur in a short time.

Ethereum does have the best prospects of all altcoins, this is evidenced by a significant price increase. But having an altcoin needs to be a companion who can share the risk if the Ethereum price drops so the loss is not too large, even though the current trend is price increases.
I see the price of ZCash is quite attractive to be an investment in the future, this can be seen from the price that has increased in the last 2 weeks in the position of USD 70 now today has reached USD 86.

Because I am not a rich person, I am collecting capital for crypto trading by following the bounty, my job is to work on orders from the developer and if I am done I am paid.
From there I have an altcoin that can be invested in the hope of getting a profit, where I play as a paid worker and as an investor from the payment that I receive after the project is finished.

More crypto exchanges show more and more trade participants, where the amount of money in circulation is an indicator that crypto can be accepted in that country.
For traders, the increasing number of crypto exchanges means more choices for transactions because there will be competition by providing a lot of added value.

All crypto coin makers certainly hope that their coin creation can be as popular and expensive as bitcoin. In my opinion it is a natural desire, even a necessity that will spur developers to improve their technology so that it can be like bitcoin.
But to this day no one can approach it, bitcoin is already far above the sky while altcoin still has to wrestle with trade which is sometimes a quiet transaction. Maybe for the next 10 years no one can compete with bitcoin.

I am not sure he is Satoshi Nakamoto, because there must be scientific proof to be able to confirm the truth. It may be necessary to match fingerprints with the devices used for the creation of bitcoin projects or other legacy evidence that can be recognized more forensically, such as DNA.
Everyone may be able to claim to be Satoshi Nakamoto, but that confession must be accompanied by valid evidence which is indisputable.

If the size is to be used, of course the US Dollar is superior, because it can be accepted anywhere in the world. While bitcoin is still used by limited circles and certain countries that legalize it.
But if it is a consideration for investment, I choose bitcoin to be more profitable, because the level of fluctuation is high enough so that as an investor, I can make big profits.

I am correcting your opinion, because I believe bitcoin will continue to go green until the end of this year. Today's price is more than USD 8000, meaning reaching USD 10,000 is not impossible.
I am pleased to see that the bitcoin price movement is very encouraging, although it may not be like 2017 but can prove that the opinions of experts are wrong, because they tend to be pessimistic about the future of bitcoin. Even though I was in a very optimistic position.

Of course everyone's method of analysis is different, depending on the perspective and investment objectives. For short-term investments coins must be sought that have a large increase, meaning that the transaction volume is also large. It is possible that prices will rise faster than coins with small transaction volumes.
In addition, of course, you also have to pay attention to the bitcoin movement whether the trend is up or down, because changes in the price of bitcoin will affect the price of all coins. That must be considered.

ICO is more profitable if it is followed by optimism that it will be paid after work, because it does not issue capital. In contrast to IEO investments that must be capitalized so that the risk of losses can occur.
To be safer, of course, you must look for a clear ICO project and be implemented by a professional team that does have a development platform with a definite direction. So this is not an arbitrary project, because such projects usually end in fraud, while people who work are not paid.

Investment in digital currencies is certainly different from investment in paper money, especially in price movements that change very quickly. While fiat currency, the changes are not too large and not as fast as cryptocurrency. However, both of them have their respective advantages.
For speculators, of course, they like cryptocurrency because fast price movements have the potential to provide fast profits too, besides that it can be bigger. But it could be a greater loss. However, currency trading can be understood by professional actors because it has characteristics that can be analyzed.