I just checked the cryptopia and what you said turns out to be true. I must say that I am lucky because of the following 2 reasons.

1. I had not much balance in cryptopia when the exchange was hacked. I had a few hundred altcoins though, anyway it wasn't much (approx 0.004btc).
2. I had recently logged in to cryptopia to find out that all the wallets except bitcoin were under maintenance. What I did was I converted all the altcoins to bitcoin and then placed a withdrawal.
The withdrawal did take time but at the end of 24 hours I had received the amount of bitcoins in my personal wallet.

Damn I am lucky, if I hadn't done this my coins would have been lost forever.  

Still I feel bad for those who lost their money in the cryptopia hack. That's why they say not to store a big amount on exchanges.

I kind of knew this question would arrive and I was prepared for the same. The thing is we would not store it on one particular location but a group os 'trusted' locations.
Example: If we identify 50 or more trusted locations and store the archival there then it shouldn't be called centralized as the archival is still spread across trusted locations.

There is no need to validate all the previous blocks until the genesis block. Only the hash of the archival and the hashes of the previous blocks until the archival would be sufficient.

For example: The blocks until 200GB are archived and from the next block(first block after the archival) it would be considered as second genesis block or genesis block after archival.
So we would need to validate only blocks until second genesis block and not all the blocks until the real genesis blocks.

Yes, pruned blockchain does sort out the issue of storing the whole blockchain on your system however it still has to validate all the blocks until the genesis block.
Whereas my proposed system would eliminate the need to validate all the blocks until the genesis one and will only need to validate blocks until second genesis block/genesis block after archival whatever we name it.

Well that's a nice thing to start with. I haven't thought about it yet henceforth I can't comment on it. It's good that you have reached 15% compression and I hope you achieve more so that we all could get better at it.

To begin with, I don't have deeper technical knowledge about the blockchain as many others here have. Which is why I would like to get opinion for a solution which I think might be possible to reduce the blockchain size.
Again, I am no expert and just expressing my views to get some better reviews and understanding of the blockchain.

Considering that the size of blockchain has already crossed 200GB+ I think the simple solution here would be to archive this data from the Blockchain and store it on some particular locations from where the archival is easy to access.

Let us consider that we have archived all the blocks until 200GB and have stored on some secure place. Also, we have attached a hash/signature to the archive and modified the consensus such that every new block that is generated includes a hash/signature from the archive. So now instead of validating all the previous blocks, the miner will validate only the hashes of archived blockchain, previous block and the current block.

This will save the 200GB of data that a miner has to validate and reduce the size of the blockchain. I know there must be some flaws in this system. Let me know in the comments.

Dude, that's a hillarious example for media reports these days. Media knows well how to manipulate information for their advantage.
They will show it like get free money for signing up but they won't tell you how hard it is to undertake the signing up process.
This is why I have stopped watching TV and I only watch those content on the internet which is reliable and gives out some knowledge.

To be honest it is quite expected mate. If we look throughout the history of bitcoin we can analyse that every bullish trend had faced some minor corrections at some point of time.
It is like every spike has a minor decline. Bitcoin's price had increased from $3000 to $8200 and it had to face some correction.
I wouldn't be surprised if the price go back to $6000 as bitcoin has faced such corrections. What matters is that it has to recover the correction and only then it can bounce back harder.

Why don't you show us who is holding the funds. What would be better is you tell somebody who is trusted here on the forum to escrow those funds.
I am sure you will get hundreds of reviews if you escrow the funds. People are not fools here to believe a newbie on the forum. Nobody here has a reason to trust you.

Not a surprise though since it has been rising for quite some time now. I was in fact expecting a minor correction before the next big rise takes place.
If you know bitcoin better then you should know that if bitcoin's price rises suddenly then it will stop at one point and undergo a minor correction before it makes the next big rise.
This behavior is in fact needed so that the other investors could get in the trend when the price falls back a little.
The recent correction is due to the US futures stock is trading lower as said by Cointelegraph and Coin360. It is also said that if bitcoin recovers this correction then the next resistance is not until it hits $10k.

It wouldn't be wise to perform a rollback since it would mean that a majority of miners combined would have the power to dominate the blockchain. It would mean that the blockchain can be centralized just as banks are.

Even if Octopus' CEO tell his CEO friends to rollback it wouldn't be guaranteed that they will do just as he said.
There is a possibility that his CEO friends would also get the huge fees from Octopus' CEO and perform a rollback filling their own wallets instead of reverting that particular transaction for which the rollback had to be done.

The longest chain is the true chain. So even if a rollback is done, it will have to override all the transactions from the original chain that were performed after the rollback was done. It will take a good amount of time doing that since the original chain will still be confirming new blocks. All of these new blocks should then be added to the new chain as well because if not then it would be a loss for those people whose transactions are getting confirmed on the original chain. Things will just get more and more complicated and this will in turn increase the cost of performing a roll back.

So in my opinion, a roll back is not a wise thing to do as it will make things more complicated while increasing the cost of the roll back and more importantly, leaving the blockchain to be controlled by the miners.

Of course it will. Though the mining difficulty has increased a lot over the years there are people still mining bitcoins with the required equipment.
Bitcoin price has increased but this doesn't make any changes on the mining part. Mining will still continue and it has to.
This will effect the transaction fees though since the network might get congested which will in turn increase the transaction fees eventually.

There are pretty good chances that ether will boost from this bull market too. Bitcoin is gaining some good gains this time and with the rise of bitcoin the altcoins are in a rise as well.
Ether was around $70 at the bottom price this year but has now crossed $250 which is more than 3x times. It has good potential and it will surely cross the $1000 target again.

It may or may not be the reason for the creation of bitcoin but the 2008 crisis definitely would have created a motive to change the traditional financial system.
There were many people who got affected due to the crisis. We don't know if Satoshi was one among them or not but it could have created a need in his mind to bring the next money.
What matter is that he did it and created a revolutionary cryptocurrency. If it wasn't for him then we wouldn't be discussing about it in this forum.
Bitcoin has added so many jobs in the crypto community. It has employed many freelancers and unemployed people. I believe that Satoshi has already achieved his motive to create Bitcoin.

That must be a pretty fucked up job then. I wonder how you lasted all these years without any increment in your salary. There might be something interesting with the job if you have lasted so many years on it.
May be it's a government job or may be you like the job too much which is why you are still on it. Well, inflation is something that works this way and an increase in salary is a necessity to survive the inflation.
This is a generation where saving money won't be enough. In order to tackle inflation we should have a side income or a passive income. We can't rely on our main job to serve our needs along side the inflation for a long time.

I get your perspective and I can say that if you think from such a perspective then you will never find a good crypto exchange.
I will consider Binance still a better exchange than the other exchanges. Until a system is connected to the internet, it is prone to get hacked.
No system is safe! The only thing we can do is to possibly safeguard the system from every aspect. Binance did try to safeguard it's website and it was successful until the recent hack.
Binance knew that such an attack is possible and there is no getting away from it which is why it has been saving funds for such an attack.
We should be happy that our funds are safe rather than thinking which is a better alternative to Binance.

Yo do have options though. For instance, if you want to move the bitcoins from one exchange to another then simply convert them to a coin which takes smaller fees and then after transferring to the exchange revert it to bitcoins. If you want to transfer bitcoins from one wallet to another then wait for the amount to get a little bigger until you can afford the fees. You can also import the private keys into a different wallet provided that the wallet supports it. Besides that, I don't think we should move bitcoins if the transaction amount is less than $100. We should probably accumulate more amount and then transfer so that we spend less on fees.

It is well known to everybody that Yobit is a running scam. I call it a running scam because it has been running scams for a few years now.
We should probably declare it as Yoshit 😂 Though it has been scamming from a long time, it's scam came into attention when Yobit started too many new ICOs in 2017.
Not only it started ICOs but also started giving huge returns in it's investbox for some shit tokens. It listed too many shit coins. Most of them are dead now.
All of these made Yoshit even worse. I stopped using Yobit since mid of 2017.

It's a mean world out here. Everybody is out for money. Some do it ethically while some not. Once the money is out of our hands it's never coming back to us.
Never expect scammers to be so grateful because then they wouldn't scam you in the first place. Even the ICOs don't give your money back when they scam you why would scammers will.
Even Amazon has stopped giving refunds for many products and the only option is to replace the product purchased though you can get refund by asking to customer care but you get my point right.

How about slicing John's d**k to 5 equal pieces vertically and add it as a topping in a Pizza. Imagine baby corn pizza. That would be cruel and nasty though.

Predictions doesn't matter when it comes to crypto. Nobody predicted that the price would fall so low when the bear market started in 2018.
If people could make predictions so accurately then everybody would be millionaire. I am quite sure BTC won't even cross $50k by the end of 2019 (not making a prediction here).

You have posted in the wrong section mate. The right section for this thread would be speculation.

As for the OP, I have been in this community since 2015 and I have been through few bear markets.
Through my experience I can say that you can never tell when the next bear market would begin or the next trend change would occur.
Although there are a few facts that you can predict.

• The market will recover for sure sooner or later.
• Once the price has gone upwards for quite some time, it is surely going to fall down a little to make a correction.
• If the price is continuously going up for a long time then it is a bubble.

So you can expect to sell your coins when the market is going upwards for quite some time. We can't predict the exact time though.
It is something that we have to understand on our own.

No system is Safe! - Read it on somebody's personel text.

As long as a system is connected to the internet and has vulnerabilities, it is possible to hack the system and steal the data in it.
I believe no system is unhackable, you just have to find the right vulnerability to it. Hackers found it out and hacked binance.
Why they did it ? Probably for the money. Nobody can be blamed here. It was just a misfortune that happened.

In my opinion, all he wanted was to develop a currency which would be anonymous and easy to transact over a network while passing through the consensus.
He created bitcoin to achieve the following and made it such that it solves all the problems he ever imagined. Fortunate or unfortunate that he decided to let bitcoin grow on it's own.
Basically whatever he did was planned and so we can't say that he never thought bitcoin would go mainstream someday. He must have thought about it which is why he created bitcoin at first place.