it depends on how you are selling them!
for example if you are going on the currency exchange board of bitcointalk and selling the coins by lying and faking facts then it is unethical.
but if there is an actual market for it like on an exchange (for example on Yobit) and people are already trading that coin (if it has volume) then there is nothing unethical. they have a reason for trading (buying) the coin there. go ahead and dump your coins.

PayPal, Visa, Perfect Money,... exist. does any of them "dethroned" bitcoin? obviously no. nobody in their right minds gives up a well working decentralized currency (bitcoin) and chooses a centralized payment system?

anything that Telegram or Facebook creates is going to be centralized and useless. they won't even come close to bitcoin!

now that we have had this correction the rise will be delayed a little bit.
if price continued rising due to hype that would have came after the rise and breaking of $10k you could have expected a big rise and $11k-12k as the result.
now things changed, the hype will no longer come. we will most probably see a slower rise towards $12k after the correction is done then move up from there.

true but incomplete. the correct way to say it is that the amount of fee you pay depends on the size of your transaction. the size changes based on a couple of factors including out many inputs and outputs you have.
the other factor is the type of transaction you are making. for example a regular tx with a compressed key adds 148 bytes to a transaction but a multisig can add nearly 400 bytes and SegWit about 102.
check this cool site for more information: https://coinb.in/#fees

there is a way, but i don't know if anyone has actually done it or not. you just have to take each block from block #1 up to the longest height. then check their coinbase transaction to see if it is claiming the block reward and the total fees or not.
the "evidence" is the link of that topic on reddit:
https://tradeblock.com/bitcoin/tx/9bf8853b3a823bbfa1e54017ae11a9e1f4d08a854dcce9f24e08114f2c921182

well paypal exists as an online payment processor with a lot of issues. the biggest one is the fact that merchants have nearly zero protection thanks to the charge back and the scumbags on the internet.
bitcoin fixes that! so bitcoin can basically put paypal out of business and make it obsolete in only a couple of years. any other CEO would have felt threatened and attacked bitcoin like this!

i liked this answer, we have seen this time and time again it won't even surprise me if it comes true

it is not "exactly" 17 million because in all these blocks there has been miners who messed with the code and made mistakes which meant they didn't take the block reward and that reward (that is newly genrated coins are lost forever). lost in this context means out of circulation and never entering it at all.
for example this one: https://www.reddit.com/r/Bitcoin/comments/7n1ie5/someone_destroyed_125_newly_mined_bitcoins/


it is customary that when you make a guess you say you are making a guess.

the market moves because these someones are buying and selling their coins. in other words at any time in the market there are some people who are selling and some who are buying

why for 8000 and not 8500?
why for 8500 and not 9000?
you can go for eternity!

in any case when you are trading you want to get in and out based on your speculation. someone who is selling his coins at 7850 speculated that price is not going higher than that. and he is selling that amount to someone else who speculated that price is going a lot higher than 7850.
there is no right or wrong here though even if price goes up or down. it is all trades and can give you profit if you made the right decision.

this current drop that started an hour ago from the peak of this bull run is a trap, a bear trap to be exact. it is more like the last shakeout of the 3 digit space before we go above it and beyond $10k into the 5 digits territory.

this is one of the biggest mistakes that newbies are making these days because the media is mostly advertising them into making this mistake. and that is buying many altcoins thinking they are diversifying. but in reality they are not!

when you want to diversify you need to buy things are not connected to each other. for example invest in different things so that if one day one of your investments went down overnight your total portfolio doesn't take a hit because only one went down while others stayed up.

in cryptocurrency market everything is connected to bitcoin. if it goes down everything else goes down with it so why would you buy others and hold on to them?

the first step in my experience is deciding what you want to do and what you want to get out of this market. for example many are not traders, they are either incapable of trading or don't have the time for it. these have to do an investment mostly for long term and for that there is only limited options. if you choose bad (like choosing altcoins) you will lose money.
for the rest who are traders they have to decide how involved they want to be and then they have to face the reality of the market instead of getting sucked into hypes and FUDs.

yup i was wrong
it proved to be harder than i thought. price went up close to $10k ($9755.5 on bitstamp) and couldn't go higher because it faced resistance there and now we are seeing the correction.

the duck is still in hiding though, i am starting to miss him...

unfortunately the adoption, specially by merchants does not work that way. they don't "rush in". it is a slow process of them weighing options and and doing risk assessment and then adding bitcoin payment to their platforms.
as for lightning network it is growing fast because there are a lot of people interested in it but it is not yet complete nor safe to use it for serious purposes. that will also take time.

what fall? you mean the fall from $8600 to $9700 and now $9100 in one day? that is called a rise. and if this was a real thing the price would have fallen much harder. more like a sharp drop from $9700 down to $7500


they have not yet banned anything!

one thing about bitcoin is that it doesn't rely on any country, and that is the beauty of it. yeah some countries like Switzerland may adopt bitcoin more and start earlier but in the end bitcoin is still decentralized and it is working outside of any country and on a peer to peer network throughout the whole world.

first of all anyone who is using a web wallet should already know that they are taking a big risk because they are using one of the least secure methods of having a cryptocurrency wallet. getting hacked is somewhat expected!

secondly the anonymity of non anon coins has different levels. there is the anonymity to normal users where an average Joe can not know who you are by looking at your transactions and the anonymity to the law enforcement which is different and they have the ability to possibly find the owner of an address (in this case the hacker).

while you are at it, you can start up the oldest scam in the book. you gather a bunch of people around and tell them you are an "Alchemist" and capable of turning other metals into gold. you take these metals like copper to have a similar color at least and use some showmanship and fool some of them into paying you money to buy your "gold"



or you know, you do a modern version of it using the blockchain technology.

the first step is obviously as others said, to choose your investment wisely but also you can to be able to choose it the right time. for example even the best investment like bitcoin has downtimes. if you bought it at $20k that means you put yourself out of the game, you have to hold until the recovery or you have to sell at a loss to come back to the "game".


yes but that depends on the market it never is a fixed number for me.
for example in a small altcoin that is starting to get pumped and i catch it at the start of the pump, the % is somewhere around 100%
but in a bigger coin that is getting pumped this is around 20-30% or less even.

first of all you need to know that when you visit coinmarketcap.com  or any other website like it which is not an exchange platform, all the prices that you see there are average prices that are coming to these websites with a delay. for example coinmarketcap.com updates its prices every 5 minutes.

so if you want to trade something go to an exchange and look at the prices there.
as for which to look at, it depends on what you are trading with! for example imagine you live in China, you don't need to check the USD price, you check the CNY price. so in case of altcoins if you are really trading them with USD then check that price but if you are trading them with BTC which is the common case then there is no need to even know their USD value!

i see no point in that!
there are different exchanges but they are nearly the same and if you choose either one of the top 3 you are good to go. they offer the same options more or less too!
the only time you want to have an account on different exchanges and trade there is when they have some particular market that the other exchanges don't or when you want to do an arbitrage trading which i highly risky when it comes to altcoins.