First time l hear about bitcoin when my sister have a vacation in the city where I can lived. We missed each other so that we have a lot of time to spend her to my home. Then she talk about bitcoin but on that time she had little bit idea about it. Her bestfriend in college teached how to joined in bitcoin because she has a result from it. Now my sister earned a lot of money while she is studying. I start to do and learned beacause I believe from it I have a future.