Different prices come down to several factors:
1. liquidity. Bitcoin trading can be huge on larger exchanges and much lower on smaller exchanges. These differences in supply affect the price.
2. The movement of money through exchanges can be erratic and inefficient and requires a large amount of collateral to work effectively. This means that it is difficult for traders to trade, given all the differences between the exchanges, which makes it possible to keep these price differences longer than on a more efficient market.
3. There is no generally accepted way to set prices for Bitcoin, which means that no one knows how much it is “presumably” worth. Its price is based solely on trade.

Why it is necessary I do not understand. no difference between fiat currencies, in practice, it is bureaucracy, manipulation. When a cryptocurrency has one owner, but in fact it is not one owner, but a set of government officials who controls it, we will not get anything special from this.

Undoubtedly, this is China, according to research, 57% of all patents are registered in the People's Republic of China, at 22 percent - products of American design. Therefore, at the moment, China is the global leader in blockchain development.

I do not think that December will please us with something, although it is difficult to make some predictions, because 2018, a very difficult year for crypto

Agree with you . Now there are no prerequisites that this will happen again this year.

It seems to me that the whole year was favorable for investment. I tried not to panic, but to buy coins whenever possible, when the price fell. I really hope that in the future it will bring me a profit

There are many advantages of Bitcoin, and for me it is one of the main ones - use as savings. But there is one moment - if you decide to keep money in this way, then you should not panic and sell when the rate drops, because then it will not be savings, but losses

Indeed, this year is very difficult for all investors. For many, the investment portfolio sags 2-3 times, causing only frustration and panic. It is very difficult to predict what will happen next

It's true . I haven’t seen such a panic for a long time, and I have always evaluated every drop myself as a chance to invest cheaper, but the market today is somehow alarming.

The price of Bitcoin can drop to $ 5,000, but it seems to me that you make a mistake if you sell now

At the moment, there is no tendency for growth of Bitcoin. I think it will take weeks, or even months, to recover.

The lack of regulation leads to the fact that investors are not protected, completely. Statistics of start-up projects seemed to say that only 1 out of 10 (or 20?) Startups survive. ICO is a way for failed, poorly thought-out ideas to get easy money without commitment and not even embark on a project.

Investors should not only look at the economy of tokens, but rather pay more attention to business economics. As an investor, you are probably so only in your head. It is necessary to take into account the jurisdiction of the project, as well as carefully read the agreements and contracts. It often turns out that if you have invested in a Chinese ICO, but you are not a citizen of China, then your rights, how could you put it more gently ... do not have them. We should not forget about the economy of the project.

My answer will not help you to draw conclusions, but I do not understand what panic will give you? Essentially, you have to panic this whole year. Drop panic, analyze and of course invest

Departure from responsibility - in fact, the whole answer. Who would not say, but it is always on the verge of fraud. And even if initially the initiators had good intentions, when they fail to implement the plan, they can disappear with a clear conscience and full wallets. Often the risk is presented in an understated format and the real difficulties remain unanswered.

I invest in Ethereum and some coins from the top, but I also invest in promising coins that are not in the TOP 100

Bitcoin is better to be considered a reserve currency, digital gold for the accumulation and preservation of capital. But it is less profitable to speculate with them than with altcoin

I believe that right now you need to buy and Bitcoin will not fall below $ 6,000, although there are no forecasts for growth this year either.

Yes, I buy from not top 100. There are pretty good and undervalued coins that are rising in price and are rapidly nearing the top 100.

ICO gives you the opportunity to earn quickly. This trend has led to the fact that they began to specifically create products for ICO - you just have to competently write white paper, find an original innovative idea and conduct an aggressive marketing company and you have several tens of millions of dollars in your pocket. Products appear in order to collect money, and not in order to develop, and the main purpose of ICO is the initial public offering.