Worse case scenario: loss of confidence in btc would collapse the entire crypto market. The mrkt cap at the time would go straight to zero and a massive evaporation of wealth would kill the possibility of ever again having an alternative currency.

Blockchain technology has witnessed huge ups and downs and a lot more discussion on the famous cryptocurrency ‘Bitcoin’ and the technology behind it. But more than the cryptocurrency. I believe that blockchain technology is gonna be used mostly in future. This technology is really much advanced technology and to the surprise of many, this technology can be used in many other aspects along with finance sector.

Since Bitcoin is changing the way transactions happen, it is breaking the limitation and dependency which we have on Fiat currency currently.
 -First case can be a government ban over usage of Bitcoins.
 -Second case can be a crash of any huge bitcoin mining firm which may occur due to hacking or any other security lapse.
 -Third can be nonacceptance of Bitcoins from people who are not able to understand how it works.
When we deep think on how bitcoins work, we would know that it is a next generation technology, there is nobody who holds it, no authority who regulates it. The value is auto decided on the basis of demand and supply. Usage is a like a computer program sent from one wallet to another. This may create a “Who moved my Cheese” Scenario for financial authorities.

It depends what you mean by mining. If you buy gear and connect to a pool and mine on your own - it is not ponzi. You will slowly earn something. Different question is profitability.
If you mean investing in online offers - there can be a ponzi scheme. There are tons of different websites that offer this. Most of them are scam sites that will just take money and wont give you anything.

 I believe in the power of the crowd and this is a general trend. Think about how Wikipedia works! Or how now people tend to trust Yelp over Zagat. This platform: MoneyGoat - Connect | Discover | Invest allows people discuss investment opportunities and rate and review other platforms. You can follow some savvy investors to see what they prefer and propose your questions to a public who is interested in investing.

 My favorite investment website in the last months is Octoin. They are basically an all-in-one solution for cryptocurrencies, with trading, investing, cloud-mining, a peer2peer exchange and a multi-currency wallet. They even built their own cryptocurrency.
 You can make your deposit in Bitcoin, Ethereum, Litecoin, Dash and Zcash. They offer around 25% profit per month if you choose one of their trading plans. My strategy is never to invest my whole money, only what I have to spare.

 The cryptocurrencies alongside the blockchain innovation that is driving it are upsetting the whole budgetary part. The ascent of cryptographic forms of money over the past couple years speaks to "the legitimization of another advantage class rising close by the conventional worldwide economy.
 Cryptocurrencies are good source for getting greater returns but this only happens when you begin with a reputed stage like cryptobulls.

It reminds me of Big Brother, as well as Goldstein from Orwell's '1984'. Nobody knows if they are real, but people keep talking about them and even stating about having seen them. Don't you find it suspiciously similar to that of our reality?

1.There is no such thing as risk-free investing
2.Crypto currently (2018) is pure speculation not investing
3.Go for BTC = Bitcoin and ETH = Ether(eum) those are the most prominent and those likely to survive future bear markets. Thus the least risky cryptos. Keep in mind cryptos can crash 70–90% withing months and fluctucate +-20% a day at volatile days. It is a high risk (potentially) high reward strategy.
4.Never invest or speculate money you need ever again. I suggest viewing it as gone and be happy if some is still there or if lucky greater then before.

Bitcoin is a type of digital currency,to be more specific crypto-currency , which is based on cryptographic algorithm. Its generation, verification of transaction everything depends on cryptographic algorithms.
Biggest benefit of Bitcoin is that bitcoin transaction between two individuals take place without any third party involvement. No one can control your money. No bank, no central authority or any government organization.
Nothing can control it. It is totally decentralized money.
Second benefit of bitcoin is it’s transfer, verification and generation everything is dependent on common public. Everyone can contribute in Bitcoin verification or generation.
Third benefit is transparency. It is totally transparent. There is public ledger . You can see your transaction in that public ledger. No one deny that he did not receive money.

No bitcoin is not scam and other ponzi schem.

Some people is waste mouth publicity.they are no aware new technology and no understand for new technology. Crypto assect is new anvision for assect level .This no ponzi scheme.this anvision is prove we are no need for other midearte.

Blockchain is now at the center of the attention.
More and more people are joining the bitcoin revolution.
More and more services can now be payed with bitcoins.
More and more years of existence are proving the sustainability of the technology.
Financial institutions are now aware of the existence of the bitcoin.
And the bitcoin supply is limited, so the price keep rising.

Because altcoins are pegged to bitcoin. The markets adapts to price fluctuation. People buying altcoins for bitcoin and inversely when people sell altcoins for bitcoin.. Which we just saw with people buying bitcoin so they would get bitcoin gold.

What about the the claim that a good currency needs to be stable? Users need confidence that the money they're paid in isn't going to lose its value. The argument is that Cryptos are so far too volatile to be useful as widely accepted medium of exchange.

The increase in bitcoin price does not mean increase in crime because most people and organizations are also using bitcoin for legal transactions. Let me summarize my answer buy asking you a simple question, does the increase in the supply of guns and military weapons implies the increase in robbery, violence e.t.c ? the answer is No.

Hacking bitcoin would require a quantum computer, and we don’t have any of those yet. If you did have a quantum computer, you could not only steal other people’s bitcoins (and those which have been lost forever) but you could also produce blocks super fast to enable double spending attacks.

Remember again - on the one hand, blockchain has emerged popular because of some of its features. However, on the other hand, hackers donʼt sleep and there will be malicious penetrations.
Plus, exactly the anonymity of the owner makes it easy to be changed.

Absolutely.  Every transaction is recorded in the blockchain, a public ledger that is shared with every participant in the bitcoin network. 

When you buy bitcoins from an exchange they (or their bank) are supposed to follow know your customer (KYC) and anti-money laundering protocols to identify you.  Once your initial purchase is linked to your identity, every other transfer of Bitcoins can be traced back to you.

You cannot find this user’s identity. Let’s see how Bitcoin system works;

No one knows who holds a particular bitcoin address. It’s like having a clear plastic wallet with no visible owner. Everyone can look inside it, but no one knows whose it is. However, it’s worth pointing out that people who use bitcoin unwisely (such as always using the same bitcoin address, or combining coins from multiple addresses into a single address) risk making it easier to identify them online. You can have the same wallet but you can use a lot of addresses. Most digital wallets make a new bitcoin address for you every time you make a transaction. But if you use a public address (for example if you post your address on your e-shop) then it’s easy to find how many bitcoins are stored in this address. Not your wallet. So, practically, it’s very difficult to identify a bitcoin user nowadays.

The price of bitcoin is derivate from many factors, the one that comes from my mind are:

Fight between stakeholders about the Bitcoin scaling issue
A Huge volume of transactions on trading exchanges
Geopolitical events and corrupted governments
Bitcoin is limited in numbers and more people are eager to get a piece of the pie, this increase the rarity of this cryptocurrency.