Yes bitcoin is risky because is volatile as a piece of software where there is not mass adoption world wide as a medium to buy/sell goods and services. But for what reason bankers, ministers of economics of many states they speak about blockchain technology and digital coins? If bitcoin was not a serious opponent to fiat money bankers would not throw an eye and will not invest vast amounts in this technology.

The psychology of masses and buy/sell bitcoin can change the price daily. We know that most of the people use fiat currency as a medium of exchange compared to bitcoin. Bitcoin at most has value in exchange markets so its price change very easy compared to fiat currencies. That's in my opinion the main reason we have fluctuations of the bitcoin price daily.  

Though this very difficult in the near future is not impossible because there are the conditions that USD may collapse. The debt to GDP is over 100% that means repay of dept will be with cheaper money if US government decides a small devaluation. Secondly his strength is based on reserves of foreign currency banks. If the latter lose their credit to dollar then another fiat must replace it. Euro after the crisis in eurozone is weak with uncertain future. China, although holds a big part of US dept will not left behind for a long time if believes that RMB can replace dollar and maintain their current economic growth.

Next decade will have a rapid growth of cryptocurrencies. Bitcoin as a leader of them has an increased maturity and is world wide known because of blockchain technology. On the other side we see that fiat money try to take ideas from bitcoin like as their digital coins and private blockchains because they fear that people will lose their bank credit. I believe that a big part of world population will follow bitcoin and this is will be the decisive factor that will launch the bitcoin price maybe to $10000. 

Lately, there is a considerable debate about the blockchain technology not only by the bitcoin community  but also by banks as well as finance ministers states. The latter announce plans or experimental technology implementations using their centralized private blockchains which has no similarity with the decentralized one bitcoin uses. I think this is the matter the OP referred to saying if blockchain is real or hype.

There is no magic solution and none investment is a hundred percent a secure sanctuary. Maybe a good one is your portfolio to include the following types -stocks, bonds and cash (including bitcoin). An asset allocation of 50% stocks, 25% bonds, and 25% cash would be a good one but you could to reform according the risk you are willing to take.

In my country the economic situation is really bad. That is, the unemployment rate is about 23% where the youth one is more than 46%, the debt as % of GDP is more than 170%. The worst of all is that it does not seem to an end and the feeling is that probably the worst is ahead.

Nowadays there are many presentations of the blockchain  technology. I would like to see not only the pros but the cons as well. Furthermore, maybe you would be more creative because this video is something like  powerpoint presentation with autovoice. At the end after your post you put your network wallet so every listener before see the video was thinking that this was another's one way to only make money; that is creates a negative impression IMO. You could add your wallet in the description of youtube.

Of course what did he say in other words? We love blockchain technology, we love digital currency (It's better than fiat to control people's wealth and has minimum cost ) but take a look at next quotes




that is, we don't want decentralized currency we don't want to control your money we don't want sheep withοut the shepherd.

I definitely disagree that is paranoid to buy/sell bitcoins face to face if you follow some common sense steps and the amount you want to spend is not very high. So I will recount how I bought two times in the past with this way.

1. Using localbitcoins I bought a some coins for a couple of times using the option national bank transfer. So when I paid him I saw his real name as well as he saw mine.
2. Checking his feedback not only with me but with other people I asked him to have a deal f2f because the exchange rate was better than before.
3. We met in a public space where internet connection was without hassle I asked him his id and I gave him the money. After the first confirmation I returned his id and our deal finished.

No; usually long term investments are less risky than short term ones. Of course always there is risk but it is low, mid and high risk and profit is depending on risk. Say that somebody buy stocks that tend to grow slowly. These stocks tend to be less volatile, that is less risky, because the underlying company has steady but not spectacular growth. Which of next two is more risky? Buying stocks from a wordwide known bank or from a startup company?

People everyday they have the same fear. Especially when there are periods of a worldwide economic crisis. Interested users would be good to read about Nixon shock https://en.wikipedia.org/wiki/Nixon_shock. It was a form USD collapse. Those years people resorted to gold in times of economic uncertainty. Now they have not only gold but bitcoin too.

Many countries will not want to be friendly with bitcoin but they know that they will be blamed by the technologically developed countries around the world. They also fear their own citizens because they will use their coins in stores outside of their borders. Generally many times in the past if a country tried to stop technology and development they did not succeed in doing anything

No; bankers they use blockchain or something related to that only for their purposes. Recently, the LHV the largest independent Estonian bank was experimented using a kind of programmable money worth 100,000 Euros using a private blockchain said CUBER.

I saw the video but I have my doubts about alt coins. If someone wants to exchange bitcoin with alt coins must be very well informed and his movements be one step the time. Alt coins are not only volatile but nobody can assure you that will not die in a week.

Nobody can rely on words of a company after having sole purpose the profit. This particular promotes an open source software called Spark related to blockchain. So probably would be strange and there is no reason to stay in bitcoin.

I believe that all of these multinational giant companies have an army of consultants and "weigh" very carefully the pros and cons of every business decision they think to make. So if they decide to take part in mining they will invest vast amounts of funds for long time.

I agree there are countries which they ban bitcoin for different reasons. Also there are countries which maintain a passive attitude "wait and see" and in their legislation is considered as an agreement between two parties and not as currency. So its not strange many people not use it because they believe it is illegal. Legalization and information are imo the main reasons to prevent the dominance of bitcoin globally.

Bitcoin transactions are fast when I buy something from Internet sitting on the chair front of my computer but is extremely slow when I wait in the cashier of a supermarket with 10 other people behind me expecting to pay with cash or their debit/credit cards.

Bitcoin can be used world wide (assuming that there are merchants accept it) without the need for exchange in foreign currency
It's not inflationary fiat money to lose his value every day
If someone wants to rob me he will get nothing