I heard first about bitcoin from TV 5 yrs ago, then I researched for some informations in the internet, unfortunately, all I know was Bitcoin is the virtual currency. Recently, my friend's introduced about bitcoin and how had he dealed with bitcoin and made his own money, I think I am interested, again. Then I've researched again for informations, found for biggest forum about bitcoin (it's why I am here ). I found out that it's not easy, I still have a lot to learn.