Honestly, there are many advantages which proves the best currencies, for example:
The price is so important, especially when the value is higher or in growth.
The Market cap, particularly when the amount is huge (like bitcoin has 250 Billion dollar in market cap).
Moreover,the Circulating supply  which it is the number of coins existent in public.
Also the Volume is essential when the value of it is big (such as, the volume of Bitcoin and Ethereum)
Finally, It is very important to know currency statistics, especially at the level of development of the price in current time.

I guess that 2018 will be more successful for many cryptocurrencies especially to bitcoin and surely It will always be at the top of the coins and the king of all and in the next year I think that the price will become so superior (maybe this value will be close to 100K). Moreover, there are some Altcoins which may will have an evolution of the price (like : Litecoin, Ripple, Bitcoin cash...) but  it's hard  that there are  some currencies can exceed Bitcoin.

Absolutely not, There is a big difference between Ethereum and Cardano. Such as, the price of ETH is $719 and the value of ADA is very low ($0.3) also there is a huge disparity between their market cap and the Volume too.
In otherwise, thought that the value of Ethereum was  decreased with a small value in the last period, but for Cardano in last week there was a significant drop by 21%.

Actually, I advise you to buy big quantity of Ripple because the current price is low ($1.33) and the supply is high compared to many coins. In otherwise, surely that this low value will rise after a period. As well, maybe investing in this currency is a good choice. Also, it is expected that Ethereum and Litecoin will grow but after a long time.

Seriously, $1000 is the price who makes me sad because when the price falls to that limit and  when this is achieved these may be the last moments for bitcoin and surely the end  of that is the disappearance and  no one wishes that. Hopefully that bitcoin will be  always  the best of all currencies and the value will be better of this current  price .

In my opinion, the best stable coin is Ripple (XRP) and the market cap to this currency is very huge compared to other coins also the price is constant ($1.28) and the most advantage is the biggest circulating supply and the volume too, In fact, I advise you to invest in this coin for a long term because certainly that Ripple Will have a great development in the future also it is a good choice to hold a big amount of it.

Seriously, this is a perfect time to buy bitcoin because in the last period there is a small decrease in price (drop by 5%). As well, It is certain that after this decline, there will be a big jump and maybe this will be developed at the end of this month or at the beginning of next year and at that time may exceed the price of 30K. So it's not late to buy.

Actually, I think that bitcoin will affect positively to the economy of the world and particularly when the governments recognize it and the other currencies too, then everything will change for the better for all cryptocurrencies but the biggest problem that many countries are afraid about these coins because they cannot control them and and they always want to dominate the money.

For me, when I have an important amount of Bitcoin then I will help who needs money and improve their financial income, especially for the poor and the needy.
Furthermore, I believe that when you give something good to a poor person you will get something better in the future, and we must learn that this life is not only for us but for all people.

In my opinion, the best choice is to invest 50% in Ripple (because in last period, there's a big evolution for the price which is $1.10 and there is a leap for the value more than 38%). Then the other half to invest in Bitcoin because it is certain that the price will develop significantly at the beginning of next year (maybe the next price will be near of 40k).

Probably, When the price will be 20K and at that time, I will hold all my money for a period of two months (after that I guess that the value will be more of 40K). and then I will invest 70% of my budget and the other percentage to develop the value of my budget. Moreover, It is likely that after a year there will be a great development for the price of bitcoin (maybe 100K).

Honestly, this is the best time to buy bitcoin because the current price is low compared in the previous time (in last 7 days the price decreased by 26%). As well, probably that at the end of this month there will be a big jump in price, maybe in 28st December the value will become between 20K and 25K. Also, this is the best opportunity to invest and to hold.

Actually, The best way to earning a big quantity of money per day is to freelance and to trade and you can work on signature campaign but first you must be ranked.
Surely, you must have many skills to be a big and daily profit. And when you have an acceptable budget, you can invest for a long time and mining is the easiest way to profit but you must be rich to provide it.

Absolutely yes, The big problem of physical money (Legal currencies for countries) is the weakest in the value of currency. Moreover, there is always an exploitation of the customers, especially in the  tax who is very huge.
However, the cryptocurrencies are very powerful in the price and the fees are low, and there is a facility in extracting money, In fact, there are many advantages to inflating our money such as, holding and mining and investing. and There are many opportunities to work and earning money.

I think people can control bitcoin, so the future impact will start when people sell their bitcoins. Furthermore if the miner fees will increase more it will be a big problem. So the best move now is to fix this thing first.

Absolutely not, it's very complicated to stop bitcoin especially in this duration because this currency is very secure and no categories can control it .Moreover, the best advantage of it is the development of the price  . As well, in one moment the value can grow by more than 1k.

Honestly, the biggest risk that bitcoin disappear when we holding the big value of it. In fact, the current fees are very high and that's the big problem because there are many transactions in small period and always there is a development of this transactions (unconfirmed and confirmed too).

This project is beyond greatness. It is well organized and the idea is wonderful. I just want you to stick together so that the project will not fait and as long as you are together, the project will evolve to the better.

If I have this acceptable quantity of money, I would invest all of them in 5 currencies, like that :
  40% Bitcoin.
  20% Ethereum.
  20% Bitcoin cash.
  10% Litecoin.
  10% Ripple.
So, I divided 30K  to many cryptocurrencies to guarantee the financial profit. Moreover,  in next duration of time it is expected that many altcoins will grow especially Bitcoin and Bitcoin cash. Perhaps there will be a surprise for the value of Litecoin and Ripple.

Today there was a big fall for bitcoin (the price dropped  to 24%) because many users  of this currency are selling their money.  in otherwise,  many people are afraid of negative changes in price that may get in the coming period. And consequently, there's a large amount of unconfirmed transactions in blockchain. and hopefully, the price will return to the summit in the coming days.