Bitcoin needs a small correction to grow further, it's not something to worry about. If you don't want to take the risk then you can cash out half of it and hold the rest to see what the price will do but it's your own choice. I don't recommend either selling or buying all at once, it's much better to spread the investment out over more days. I regret selling most of my Bitcoins at once when it reached $200 and I'm sure there are people that have the same regrets.

I heard about it yesterday and then tried it out but it's not playable if you don't invest at least $30 in Ethereum. Which I don't want to risk for a game like this as I don't really see the fun of having digital kittens that all look the same. However it's an interesting demo to show people how the Ethereum technology can be used in applications.

There are a lot of reasons why someone would sell their Bitcoin. I have done it in the past, it was necessary for me to pay my bills. It's something I regret now because of the extreme price increase but on the other hand had to because I didn't had the money back then. There are many other reasons why people would sell their Bitcoins.

Bitcoin's price is rising because of the increasing attention in the mainstream media, which is also the cause for the scaling problems. I think you're right about the waste of energy for mining but I think it's necessary to keep the coin decentralized. PoS doesn't feel safe for me, I think the central banks would rather buy 51% of all circulating supply than buying enough hardware to get 51% of the total hash-power. We still use Bitcoin because it was the first, I don't think the features other coins have make them better than Bitcoin. Ethereum showed today that it isn't capable yet to work on it's full potential, the crypto kitty application is the proof for that. Bitcoin core developers are working hard to find a solution for the scaling problem, its just a matter of time. I think there isn't a crypto-currency yet that can handle the traffic Bitcoin has.

The max supply of 21 million coins is true. It's a real limit, based on the fact that the reward which brings more units in circulation halves every 200.000 blocks. Starting with a block reward of 50 BTC, that means that the current block reward is 12,5 BTC which is true. Bitcoin halved two times, on 200.000 and 400.000 and is currently on 476.502. It's possible to calculate the limit using 50*0,5^n*200.000+x=x, increment n by one and doing the formula over and over till how precise you want the result to be, but in all cases it will come near 21 million. 

Coinbase zou ik niet vertrouwen met mijn Bitcoins, je hebt niet eens toegang tot je private-keys. Dus in theorie ben je niet de eigenaar van de Bitcoins die op jouw Coinbase account staan, want Bitcoin is zo gemaakt dat de private-key de toegang is tot jouw Bitcoins. Ik raad het sterk af als je dit soort hoge bedragen bewaard, er zijn veel betere alternatieven. In het specifiek ander type wallets, zoals papieren wallets of hardware wallets. Als je veilig zonder een grote investering geld wil bewaren dan is de papieren wallet een hele goede keus. Het enige nadeel is dat je niet actief toegang hebt tot je coins, in de zin dat je eerst je private-key (op het papier) moet importeren in een Bitcoin wallet. Als je dit wel wil maar ook de veiligheid van een papieren wallet dan raad ik een hardware wallet of een desktop wallet met offline mogelijkheden aan, deze desktop wallet installeer je dan op een computer die niet verbonden is met het internet. Armory wallet is zo'n desktop wallet, het geeft je zelf de mogelijkheid om transacties offline te ondertekenen en vervolgens met de online versie de transactie naar het Bitcoin netwerk te kunnen sturen. Persoonlijk vind ik dit nog veiliger dan een hardware wallet.

The answer is no, a lot of these altcoins don't bring anything new. The problem is that it makes it really hard to find new coins that really have to offer something new and also makes it hard of them to get attention. I personally just keep my mind on Bitcoin, Litecoin, Ethereum and some other top coins because these coins I'm sure of will be able to change things.

I don't see it happenings soon, because the attention to Bitcoin is exponentially growing every day. I don't think this increase of attention will suddenly stop, the only thing that could possibly slow it down is if a influential person or company would publish strong evidence that there is something wrong with Bitcoin. But I don't think that is going to happen as Bitcoin is very well build and nonsense wouldn't damage Bitcoin too much, like J.P. Morgan did.

All previous hard-forks spread fear in the community, which impacts the community negatively. But that isn't necessary dangerous to Bitcoin itself, the real danger is the switching of miners to different forks. This causes a lot of delayed transactions and extremely high fees, which makes the coin really unattractive for micro-payments. Also the attacks of fork's fans to the Bitcoin network slows the network down.

I think SiaCoin has a really good future, they use blockchain techniques on a whole new way. The idea behind it is to decentralize storage, to eliminate the need to store files on a central agency that has full access to your files, like Google drive or Dropbox. Their software let's either use your computer as storage or use other people's computer as storage. Then your data or other's data will get stored, encrypted in parts on different computers. The SiaCoin is the currency to pay for 'cloud' storage. I haven't invested yet in this coin but I plan on doing it.

You're right, desktop wallets are a better choice then web-wallets to keep your funds safely. However a lot of people like a wallet that is easy to create and is accessible from everywhere. So for that aspect, blockchain.info does the job the best. I have no idea how Mycellium works but I don't think it's a really safe option to hold your funds when you use it as a portable device, because your funds could get easily stolen when you connect to malicious WiFi networks.


Blockchain is indeed a good web-wallet, I prefer it over Coinbase because it let's you be the owner of your own wallet keys. Coinbase doesn't have this feature, so you're theoretically not owning the funds that are stored on that wallet. I have never owned a hardware wallet but I heard it's a really safe way to store your cryptocurrencies. But personally I like to save them myself using an old device and a desktop wallet with lots of security features like Armory.

I'm sure it's the main priority of the Bitcoin Core developers to find a solution, it's just a matter of time for them to find one. I personally don't think that Segwit2x is a permanent solution to the problem, it also brings other problems with it like centralization. It's just temporary, if the block-size increment will happen then we have to do it every year. It will only centralize the network further which is the opposite of what Bitcoin is created for.

blockchain.info is the safest web-wallet in my opinion, it has the advantage that you have control over your private keys. But the safest way to store Bitcoins for long-term is a paper wallet. It's easy to create and the risk of losing your coins is really low when you create it using the the correct security measures, you can find a guide here: https://www.weusecoins.com/bitcoin-cold-storage-guide/.

Some altcoins that really add something to the 'crypto world' will survive. Especially because Bitcoin currently faces scaling problems, I see micro-payments getting done by Litecoin instead of Bitcoin because the transaction fees of Litecoin are much lower. But I think that Bitcoin will keep dominating, because the only reason why people switch to altcoins is the scaling problem and Core developers are working hard to fix this. Ethereum has some potential too because of their smart-contracts, but I think that a lot of holders don't use it the way it is intended for but instead see it as an asset. That's mainly because the smart-contracts are too complicated for the average human to understand. Bitcoin has this problem too but I think it's easier too use Bitcoin the way it is intended for (digital cash system) than Ethereum.

That's why I prefer to use Litecoin for micro-payments if the seller accepts it. Litecoin is identical to Bitcoin but it doesn't have the scaling problems yet. It's one of the only crypto-currencies besides Bitcoin that I really trust, also because it was created before the hype.

If you did the transaction to a non segwit address then you can export the private of that particular BTC address and import it into a BCH client. I did a search for you on Google, this guide tells you how to export your private keys from you wallet: https://github.com/bitpay/copay/issues/5859#issuecomment-294537858. 

At this moment Bitcoin is not really suited as a payment system. When I want to do a micro-payment for example when I buy groceries at the local supermarket, I have to pay at least $5 to get my payment through. So if I buy groceries for $30, I actually pay $35 which is 17% more than is stated on the bill. However it's not really the fault of Bitcoin, there is a solution called Segwit. But nobody seems to care, because Bitcoin is seen as an asset instead of what it was intended for. If we really want to use it as a payment system again, then more wallet developers have to implement Segwit in their software and users should switch to wallets supporting Segwit addresses.

All previous drops in value for Bitcoin also impacted altcoins. I guess you can say that the price of altcoins is tight up to the price of Bitcoin. However it's not always true for all altcoins, some of them are already on the rise when the drop happens so it doesn't necessary drop the price for that particular altcoin. But most of them do, I think one of the reasons for it is that a lot altcoin trades happen using Bitcoin instead of fiat.

It should happen somewhere near 2140, but that's just a prediction. You can't tell accurately when it will happen because the blocks times vary a lot. This is because the total hashrate changes every minute and the difficulty does not. The difficulty gets a correction every 2016 blocks, it's based on the hashrate at that time.  

This post is from march 2013, that's more than 4 years ago. Altcoins were not really a thing back then, sites like CoinMarketCap either didn't exist or were not known to everyone.