Blockchain for retailing can work if we talk about tackling counterfeit goods, supply chain tracking and transforming payments..What do you think regarding it?

Yes, Bitcoin is still the best cryptocurrency to invest in 2019.

I started simply with Googling and reading everything about bitcoins and crypto currency in general. But this forum definitely helped a lot and it's always updated so it's almost impossible to miss any kind of important news and information. So I'd recommend anybody to start with some basic information and then proceed to register here.

One of the best article for a long time! Thanks for sharing it.

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The safest and most reliable exchange is where identification is required. It is transparent and cooperates with the state.

You should read Joseph Stiglitz’s works. He predicted the fall of Bitcoin. Stiglitz is the Nobel Prize winner in economics. His most famous books are the Price of Inequality and the Great Separation. He predicts that by 2020 Bitcoin will stabilize to a price of 5000 and will start to grow again.

I'd say margin trading is just buying stocks without having the entire money to do it. Am I right?

I started trading in 2016 but then "took a break" haha. Decided to continue recently 

Blockchain technology offers us so many benefits: it enhances reach of a businesses, ensures swift transactions, restricts frauds, it's reliable, transparent and cost effective. So yes, we need blockchain technology.