During last year bitcoin earned about  400% and after two days of loss from Bitcoin's high price  41800 $ to 34645 $ then Britain's Financial Conduct Authority made a statement that say: "If consumers invest in these types of product, they should be prepared to lose all their money."

Many amateurs investors may loose money as happened at 2008 that from 20000 $ dropped 4000$.

Of course there are dangers at bitcoin's invests like There is no guarantee that cryptocoins could be converted at paper money.

And if you ask me which is the meaning of this article?

I will say say every invest has dangers. The more you risk , the more you can earn and the more you can loose. You must know this.

Bitcoin is a coin that during last 10 years has many violent corrections of its price. If someone just invest withoyt being trader i am sure that he will earn enough money the next years.